Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293105
P. V. Naidu, Arvind Kumar
A low profile asymmetric coplanar strip (ACS) fed tri-band antenna is proposed for multiple wireless applications. The proposed antenna consists of three radiating patch elements printed on the 1.6 mm FR4 substrate. The ACS monopole is attached with one L-shape radiating element and two more rectangular radiating planes (stair case and L shape) are added to the radiating patch, in order to generate three resonant frequencies. The composed antenna can operates in three distinct bands ranging from (2.3 GHz–2.5 GHz), (3.35 GHz–3.7 GHz) and (6.2 GHz–8.6 GHz) band and ITU applications.
{"title":"ACS-fed multiband antenna loaded with staircase radiating strips for wireless communication systems","authors":"P. V. Naidu, Arvind Kumar","doi":"10.1109/PIERS-FALL.2017.8293105","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293105","url":null,"abstract":"A low profile asymmetric coplanar strip (ACS) fed tri-band antenna is proposed for multiple wireless applications. The proposed antenna consists of three radiating patch elements printed on the 1.6 mm FR4 substrate. The ACS monopole is attached with one L-shape radiating element and two more rectangular radiating planes (stair case and L shape) are added to the radiating patch, in order to generate three resonant frequencies. The composed antenna can operates in three distinct bands ranging from (2.3 GHz–2.5 GHz), (3.35 GHz–3.7 GHz) and (6.2 GHz–8.6 GHz) band and ITU applications.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"24 1","pages":"26-30"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86073384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293187
Yibing Li, Xueying Diao, Yuan Tian
Interference alignment (IA) is a breakthrough in interference management and has been applied to the cognitive radio (CR) network. In this paper, we focus on applying IA to the CR network comprised of multiple primary users (PUs) and multiple secondary users (SUs). An IA transceiver design scheme is proposed to mitigate the interference among PUs, called, sum rate maximization algorithm based on interference subspace distances minimization (MISD-MSR). The MISD-MSR scheme first introduces a concept of aligned subspace and designs the precoders via aligning the subspaces spanned by interference with the aligned subspace. Then it moves the designed precoders along the direction given by the gradient of the sum rate to further maximize the information rate. However, MISD-MSR cannot be directly used in the secondary network due to the fact that SUs are required to cause no harmful effect on PUs, whereas MISD-MSR makes no attempt to eliminate the interference from SUs to PUs. To address this, we proposed an improved version of MISD-MSR (IMISD-MSR) for the secondary network, where a rank constraint is put into the precoders calculation to force the interference matrix from SU to PU to be zero. Compared with the commonly used scheme which is equivalent to removing some antennas from the SU's transmitter, IMISD-MSR does not demand the SU to equip with additional antennas to eliminate the interference from SUs to PUs. Simulation results show the effectiveness of the proposed schemes in terms of the average sum rate. We further validate the proposed schemes can be applied to the system no matter whether the transmit antennas of SUs are sufficient or not.
{"title":"Interference alignment based on rank constraint for MIMO cognitive interference channel","authors":"Yibing Li, Xueying Diao, Yuan Tian","doi":"10.1109/PIERS-FALL.2017.8293187","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293187","url":null,"abstract":"Interference alignment (IA) is a breakthrough in interference management and has been applied to the cognitive radio (CR) network. In this paper, we focus on applying IA to the CR network comprised of multiple primary users (PUs) and multiple secondary users (SUs). An IA transceiver design scheme is proposed to mitigate the interference among PUs, called, sum rate maximization algorithm based on interference subspace distances minimization (MISD-MSR). The MISD-MSR scheme first introduces a concept of aligned subspace and designs the precoders via aligning the subspaces spanned by interference with the aligned subspace. Then it moves the designed precoders along the direction given by the gradient of the sum rate to further maximize the information rate. However, MISD-MSR cannot be directly used in the secondary network due to the fact that SUs are required to cause no harmful effect on PUs, whereas MISD-MSR makes no attempt to eliminate the interference from SUs to PUs. To address this, we proposed an improved version of MISD-MSR (IMISD-MSR) for the secondary network, where a rank constraint is put into the precoders calculation to force the interference matrix from SU to PU to be zero. Compared with the commonly used scheme which is equivalent to removing some antennas from the SU's transmitter, IMISD-MSR does not demand the SU to equip with additional antennas to eliminate the interference from SUs to PUs. Simulation results show the effectiveness of the proposed schemes in terms of the average sum rate. We further validate the proposed schemes can be applied to the system no matter whether the transmit antennas of SUs are sufficient or not.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"26 1","pages":"482-489"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86326230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293385
Y. Guan, Wenge Chang, Xiangyang Li
TOPS (Terrain Observation by Progressive Scans) mode allows a compromise between azimuth resolution and azimuthal scene coverage by beam-scan and the selection of azimuth resolution, azimuthal scene coverage, working period (time during which a complete beam-scan is obtained), maximum scanning angle and PRF is a systematic problem for airborne TOPS mode application. Focusing on this issue, this paper proposes an analysis method that helps decide the aforementioned parameters. The proposed method treats the issue as an optimization problem, i.e., given working period; search the maximum scanning angle and azimuth resolution that satisfy the working period, the search results are data pairs that could be used as options to calculate the scene Doppler bandwidth and azimuthal coverage.
渐进式扫描地形观测(TOPS, Terrain Observation by Progressive Scans)模式允许在方位角分辨率和波束扫描的方位角场景覆盖范围之间达成妥协，而方位角分辨率、方位角场景覆盖范围、工作时间(获得完整波束扫描的时间)、最大扫描角度和PRF的选择是机载TOPS模式应用的系统问题。针对这一问题，本文提出了一种有助于确定上述参数的分析方法。该方法将该问题视为一个优化问题，即给定工作周期;搜索满足工作周期的最大扫描角度和方位角分辨率，搜索结果为数据对，可作为计算场景多普勒带宽和方位角覆盖的选项。
{"title":"Performance analysis of airborne TOPS mode","authors":"Y. Guan, Wenge Chang, Xiangyang Li","doi":"10.1109/PIERS-FALL.2017.8293385","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293385","url":null,"abstract":"TOPS (Terrain Observation by Progressive Scans) mode allows a compromise between azimuth resolution and azimuthal scene coverage by beam-scan and the selection of azimuth resolution, azimuthal scene coverage, working period (time during which a complete beam-scan is obtained), maximum scanning angle and PRF is a systematic problem for airborne TOPS mode application. Focusing on this issue, this paper proposes an analysis method that helps decide the aforementioned parameters. The proposed method treats the issue as an optimization problem, i.e., given working period; search the maximum scanning angle and azimuth resolution that satisfy the working period, the search results are data pairs that could be used as options to calculate the scene Doppler bandwidth and azimuthal coverage.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"47 1","pages":"1579-1583"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82901498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293233
S. Aiswarya, M. Ranjith, S. Menon
A comparative study of the realization of 4 bit passive chipless resonator for RFID tag section using 4 resonators and 8 resonators is discussed in this paper. The designed 4 bit passive chipless RFID resonator tag can detect up to 15 objects. Basic resonator is a complementary spiral with direct coupling to the microstrip line (MSL), operating in the L band region. A 4 bit resonator structure using 4 complementary spirals and 8 complementary spirals are designed. The resonance obtained depends upon the length, width and gap of the spiral structure. The 4 bit resonator structure using 8 complementary spirals is twice the duplication of the 4 bit resonator using 4 complementary spirals. The operating frequencies of both the structures are almost the same. The 4 bit resonator structure using 8 complementary spirals gives the amplified version of the signal provided by 4 complementary spirals thus adding range and security to the system. Both the 4 bit spiral resonator structures were simulated using ANSYS HYSS 14. The optimized resonators are fabricated on FR4 substrate and simulated results are validated using Keysight E5080A ENA Vector Network Analyser.
{"title":"Passive RFID tag with multiple resonators for object tracking","authors":"S. Aiswarya, M. Ranjith, S. Menon","doi":"10.1109/PIERS-FALL.2017.8293233","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293233","url":null,"abstract":"A comparative study of the realization of 4 bit passive chipless resonator for RFID tag section using 4 resonators and 8 resonators is discussed in this paper. The designed 4 bit passive chipless RFID resonator tag can detect up to 15 objects. Basic resonator is a complementary spiral with direct coupling to the microstrip line (MSL), operating in the L band region. A 4 bit resonator structure using 4 complementary spirals and 8 complementary spirals are designed. The resonance obtained depends upon the length, width and gap of the spiral structure. The 4 bit resonator structure using 8 complementary spirals is twice the duplication of the 4 bit resonator using 4 complementary spirals. The operating frequencies of both the structures are almost the same. The 4 bit resonator structure using 8 complementary spirals gives the amplified version of the signal provided by 4 complementary spirals thus adding range and security to the system. Both the 4 bit spiral resonator structures were simulated using ANSYS HYSS 14. The optimized resonators are fabricated on FR4 substrate and simulated results are validated using Keysight E5080A ENA Vector Network Analyser.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"140 1","pages":"742-746"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82954703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293433
R. Chowdhury, M. Sani, R. Chaudhary
In this paper, a single feed semi-cylindrical shaped dielectric resonator antenna (DRA) has been utilized to generate circularly polarized radiation in broadside direction (Φ = 0°, θ = 0°). The dielectric resonator has been excited with a pair of vertical microstrip lines with unequal length attached to flat surface of semi-cylinder. In the proposed design, the location of vertical microstrip lines are responsible for generation of orthogonal modes in the dielectric resonator (DR) and their unequal lengths are responsible for establishing phase difference between the orthogonal modes resulting in circular polarization. The fundamental mode HE11δ is excited which radiates in broadside direction. Proposed antenna shows — 10 dB input impedance bandwidth of 24.17% in the frequency range of 2.8–3.57 GHz (at center frequency of 3.18GHz). The axial ratio below 3 dB obtained is 7.7% in the frequency range of 3.11–3.36 GHz (at center frequency of 3.23 GHz). The proposed antenna provides excellent radiation pattern with very low cross polar component with an average gain of 5 dB and consistent good radiation efficiency throughout the working frequency band. To analyze the antenna performance, simulations are carried out on finite element method (FEM) based electromagnetic simulator which is Ansys HFSS software version 14.0. The parametric analysis of proposed antenna parameters such as position of vertical microstrip lines, length and width of microstrip lines, height and radius of semi-cylinder and dielectric resonator permittivity has been performed and their values are optimized in order to find out the optimal dimensions to design antenna for best performance.
{"title":"A broadside circularly polarized semi-cylindrical dielectric resonator antenna excited with unequal pair of vertical microstrip line","authors":"R. Chowdhury, M. Sani, R. Chaudhary","doi":"10.1109/PIERS-FALL.2017.8293433","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293433","url":null,"abstract":"In this paper, a single feed semi-cylindrical shaped dielectric resonator antenna (DRA) has been utilized to generate circularly polarized radiation in broadside direction (Φ = 0°, θ = 0°). The dielectric resonator has been excited with a pair of vertical microstrip lines with unequal length attached to flat surface of semi-cylinder. In the proposed design, the location of vertical microstrip lines are responsible for generation of orthogonal modes in the dielectric resonator (DR) and their unequal lengths are responsible for establishing phase difference between the orthogonal modes resulting in circular polarization. The fundamental mode HE11δ is excited which radiates in broadside direction. Proposed antenna shows — 10 dB input impedance bandwidth of 24.17% in the frequency range of 2.8–3.57 GHz (at center frequency of 3.18GHz). The axial ratio below 3 dB obtained is 7.7% in the frequency range of 3.11–3.36 GHz (at center frequency of 3.23 GHz). The proposed antenna provides excellent radiation pattern with very low cross polar component with an average gain of 5 dB and consistent good radiation efficiency throughout the working frequency band. To analyze the antenna performance, simulations are carried out on finite element method (FEM) based electromagnetic simulator which is Ansys HFSS software version 14.0. The parametric analysis of proposed antenna parameters such as position of vertical microstrip lines, length and width of microstrip lines, height and radius of semi-cylinder and dielectric resonator permittivity has been performed and their values are optimized in order to find out the optimal dimensions to design antenna for best performance.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"2 1","pages":"1823-1826"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83244108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293160
A. S. Tasu, A. Dumitrascu, L. Anchidin, R. Tamas, T. Petrescu
In a previous paper [1], we have presented an indoor propagation model, suitable for locating with better accuracy, the radio sources buried under rubble. We have introduced a new concept of the propagation corridor, by dividing the entire indoor area into multiple parallel corridors, each with a weight ak, and an attenuation index nk.
{"title":"Hybrid multi-corridor path-loss model for locating radio sources under rubble","authors":"A. S. Tasu, A. Dumitrascu, L. Anchidin, R. Tamas, T. Petrescu","doi":"10.1109/PIERS-FALL.2017.8293160","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293160","url":null,"abstract":"In a previous paper [1], we have presented an indoor propagation model, suitable for locating with better accuracy, the radio sources buried under rubble. We have introduced a new concept of the propagation corridor, by dividing the entire indoor area into multiple parallel corridors, each with a weight ak, and an attenuation index nk.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"36 1","pages":"342-345"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80868741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293260
Young-Jae Choi, Seung-Hwan Seol, I. Choi
In this paper, we discuss a method for recognizing aircraft targets from a scattered field, which was measured using a digital television-based (DTV-based) passive radar. We combined scattered fields of coherent multiple channels to improve the range resolution of the range profile. We extracted scattering centers by using a gradient descent technique that uses a CLEAN algorithm. These scattering centers were classified using a support vector machine. To validate the proposed methods, we conducted a simulation at three operational stations in Korea. The results of the experiment show that the proposed methods have a better target recognition performance than the single-channel method.
{"title":"Radar target identification using a DTV-based passive radar in South Korea","authors":"Young-Jae Choi, Seung-Hwan Seol, I. Choi","doi":"10.1109/PIERS-FALL.2017.8293260","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293260","url":null,"abstract":"In this paper, we discuss a method for recognizing aircraft targets from a scattered field, which was measured using a digital television-based (DTV-based) passive radar. We combined scattered fields of coherent multiple channels to improve the range resolution of the range profile. We extracted scattering centers by using a gradient descent technique that uses a CLEAN algorithm. These scattering centers were classified using a support vector machine. To validate the proposed methods, we conducted a simulation at three operational stations in Korea. The results of the experiment show that the proposed methods have a better target recognition performance than the single-channel method.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"15 1","pages":"892-895"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84629852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293644
P. A. V. Sri, G. Srikanth, B. Krishna, K. Kousalya, S. Lavanya, K. Ooha, R. P. Chaitanya, B. K. Kumar, K. Srinivas, K. K. Naik
In this paper, a coplanar triangular patch antenna has designed to work at Ku-band applications. Four equally shaped isosceles triangular patches has been considered and two inset feeds has applied to the two triangular radiating patches. The proposed antenna has obtain dual-band frequencies at 15.1GHz (for defense system) and 16.4 GHz (fixed link between point to point and multiband systems) with return loss of −39.8 dB and −25.4 dB respectively. The observed gain is 9.06 dB and 7.38 dB at two frequency bands. The VSWR is less than 2 dB for the proposed antenna. The proposed antenna is useful at Ku-band applications. The simulated and measured results are presented.
{"title":"Enhancement of gain with coplanar isosceles triangular patch antenna for dual-band applications","authors":"P. A. V. Sri, G. Srikanth, B. Krishna, K. Kousalya, S. Lavanya, K. Ooha, R. P. Chaitanya, B. K. Kumar, K. Srinivas, K. K. Naik","doi":"10.1109/PIERS-FALL.2017.8293644","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293644","url":null,"abstract":"In this paper, a coplanar triangular patch antenna has designed to work at Ku-band applications. Four equally shaped isosceles triangular patches has been considered and two inset feeds has applied to the two triangular radiating patches. The proposed antenna has obtain dual-band frequencies at 15.1GHz (for defense system) and 16.4 GHz (fixed link between point to point and multiband systems) with return loss of −39.8 dB and −25.4 dB respectively. The observed gain is 9.06 dB and 7.38 dB at two frequency bands. The VSWR is less than 2 dB for the proposed antenna. The proposed antenna is useful at Ku-band applications. The simulated and measured results are presented.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"84 1","pages":"2981-2984"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88132570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293531
A. Lalbakhsh, K. Esselle, S. Smith
This paper presents an extremely thin bandpass frequency selective surface (FSS) operating in X-band. The center frequency of the FSS is 11GHz and its 3-dB fractional bandwidth is 19%. The FSS is composed of conductive circular patches on one side and inductive square rings on the other side of a thin substrate. The diameter of the circular patches, the width of the square rings and the thickness of the substrate are determined using an iterative optimization technique to make the structure resonate at the required frequency. A multi-objective fitness function is used to monitor the scattering parameters to achieve the minimum insertion loss at the center frequency and a good out-of-band rejection.
{"title":"Design of a single-slab low-profile frequency selective surface","authors":"A. Lalbakhsh, K. Esselle, S. Smith","doi":"10.1109/PIERS-FALL.2017.8293531","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293531","url":null,"abstract":"This paper presents an extremely thin bandpass frequency selective surface (FSS) operating in X-band. The center frequency of the FSS is 11GHz and its 3-dB fractional bandwidth is 19%. The FSS is composed of conductive circular patches on one side and inductive square rings on the other side of a thin substrate. The diameter of the circular patches, the width of the square rings and the thickness of the substrate are determined using an iterative optimization technique to make the structure resonate at the required frequency. A multi-objective fitness function is used to monitor the scattering parameters to achieve the minimum insertion loss at the center frequency and a good out-of-band rejection.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"22 1","pages":"2360-2363"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88191900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1109/PIERS-FALL.2017.8293137
E. H. Shaik, N. Rangaswamy
In this article, we propose a common photonic crystal based logic gate structure with T-shaped waveguide which can be used as XOR, OR and NOT gates. The inputs are inphase with each other for OR function whereas they are out of phase for XOR and NOT functions. The destructive interference due to out of phase inputs produces a very low output transmission for logic ‘0’ which leads the structure to provide an output contrast ratio of 55.31 dB. Moreover, compared with the existing literature on the photonic crystal based logic gates, the achieved contrast ratio of the proposed structure is improved by more than 23%. Further, the calculated response time is very less with a value of 0.1456 ps which leads to a bit rate of 6.868 Tbps.
{"title":"Phase interference dependent single PhC based logic gate structure with T-shaped waveguide as XOR, NOT and OR logic gates","authors":"E. H. Shaik, N. Rangaswamy","doi":"10.1109/PIERS-FALL.2017.8293137","DOIUrl":"https://doi.org/10.1109/PIERS-FALL.2017.8293137","url":null,"abstract":"In this article, we propose a common photonic crystal based logic gate structure with T-shaped waveguide which can be used as XOR, OR and NOT gates. The inputs are inphase with each other for OR function whereas they are out of phase for XOR and NOT functions. The destructive interference due to out of phase inputs produces a very low output transmission for logic ‘0’ which leads the structure to provide an output contrast ratio of 55.31 dB. Moreover, compared with the existing literature on the photonic crystal based logic gates, the achieved contrast ratio of the proposed structure is improved by more than 23%. Further, the calculated response time is very less with a value of 0.1456 ps which leads to a bit rate of 6.868 Tbps.","PeriodicalId":39469,"journal":{"name":"Advances in Engineering Education","volume":"29 1","pages":"210-214"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86798230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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