Pub Date : 2018-05-07DOI: 10.1109/ICMMT.2018.8563666
Zheng Liu, Cheng Yan, Gang Liu, Qi Li, Yuqing Wu, G. Xiao
In this paper, a new, compact and low loss analog predistortion linearizer using two parallel Schottky barrier diodes (SBDs) is developed. This linearizer will be used to compensate the nonlinearity of the solid-state power amplifier (SSPA) in satellite communication system. The fundamental principle is analyzed and its corresponding equivalent circuit model is given. Then, the desired non-linear characteristics of the linearizer versus different circuit parameters have been discussed. Finally, the intermodulation distortion of a satellite SSPA with and without the designed analog linearizer when it delivers maximum output power have been measured and compared. The results show that the nonlinear characteristics of the amplifier has been corrected and its inter-modulation distortion has been significantly improved.
{"title":"A Novel Analog Linearizer for Solid-State Power Amplifier in Satellite Communication System","authors":"Zheng Liu, Cheng Yan, Gang Liu, Qi Li, Yuqing Wu, G. Xiao","doi":"10.1109/ICMMT.2018.8563666","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563666","url":null,"abstract":"In this paper, a new, compact and low loss analog predistortion linearizer using two parallel Schottky barrier diodes (SBDs) is developed. This linearizer will be used to compensate the nonlinearity of the solid-state power amplifier (SSPA) in satellite communication system. The fundamental principle is analyzed and its corresponding equivalent circuit model is given. Then, the desired non-linear characteristics of the linearizer versus different circuit parameters have been discussed. Finally, the intermodulation distortion of a satellite SSPA with and without the designed analog linearizer when it delivers maximum output power have been measured and compared. The results show that the nonlinear characteristics of the amplifier has been corrected and its inter-modulation distortion has been significantly improved.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123612879","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 : 2018-05-07DOI: 10.1109/ICMMT.2018.8563526
Huansong Xu, Yuanxin Li, Yahuan Chen, Xiyao Liu, Y. Long
A novel dual-band offset parallel rectangular printed end-fire antenna with the double-side parallel-strip line (DSPSL) feeding is presented. The top and bottom patches are printed in parallel on two sides of a substrate plane. The proposed antenna consists of two pairs of offset parallel rectangles, the driver dipoles, the DSPSL feeding, and a curving reflector. The experimental results of the resonating frequency fit in well with the simulation results. The dual-band end-fire radiating patterns were achieved. The measured bandwidths were 20.7% for the lower frequency band (2.25-2.77 GHz) and 41.4% for the upper frequency band (4.68-7.12 GHz). The gains at two resonating frequency are about 5 dBi.
{"title":"A Dual-Band Offset Parallel Rectangular Printed End-Fire Antenna","authors":"Huansong Xu, Yuanxin Li, Yahuan Chen, Xiyao Liu, Y. Long","doi":"10.1109/ICMMT.2018.8563526","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563526","url":null,"abstract":"A novel dual-band offset parallel rectangular printed end-fire antenna with the double-side parallel-strip line (DSPSL) feeding is presented. The top and bottom patches are printed in parallel on two sides of a substrate plane. The proposed antenna consists of two pairs of offset parallel rectangles, the driver dipoles, the DSPSL feeding, and a curving reflector. The experimental results of the resonating frequency fit in well with the simulation results. The dual-band end-fire radiating patterns were achieved. The measured bandwidths were 20.7% for the lower frequency band (2.25-2.77 GHz) and 41.4% for the upper frequency band (4.68-7.12 GHz). The gains at two resonating frequency are about 5 dBi.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123859178","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 : 2018-05-07DOI: 10.1109/ICMMT.2018.8563377
Chao-feng Ding, Xiu Yin Zhang, S. Shao, Qiang Xu, S. Liao
In this paper, a compact dual-polarized filtering dipole is proposed for base station application with a size of ${31} {times 31times 25} text{mm} {(0.60lambda_{0}times 0.26lambda_{0}times 0.21lambda_{0})}$. The antenna consists four parts: main radiator, feeding baluns, reflector and two parasitic loops. Filtering response is obtained by adding a parasitic square loop and a cross loop in close proximity to radiator, which are corresponding to the lower and upper stopband radiation nulls, respectively. The operating bandwidth of the proposed antenna is LTE band from 2.3-2.7 GHz. The out-of-band suppression level is about 15 dB within 1.71-2 GHz and 3.3-3.6 GHz. The simulated port isolation is more than 34 dB. The proposed antenna element is suitable for potential base station applications.
{"title":"Dual-Polarized Filtering Dipole for Base Station Application","authors":"Chao-feng Ding, Xiu Yin Zhang, S. Shao, Qiang Xu, S. Liao","doi":"10.1109/ICMMT.2018.8563377","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563377","url":null,"abstract":"In this paper, a compact dual-polarized filtering dipole is proposed for base station application with a size of ${31} {times 31times 25} text{mm} {(0.60lambda_{0}times 0.26lambda_{0}times 0.21lambda_{0})}$. The antenna consists four parts: main radiator, feeding baluns, reflector and two parasitic loops. Filtering response is obtained by adding a parasitic square loop and a cross loop in close proximity to radiator, which are corresponding to the lower and upper stopband radiation nulls, respectively. The operating bandwidth of the proposed antenna is LTE band from 2.3-2.7 GHz. The out-of-band suppression level is about 15 dB within 1.71-2 GHz and 3.3-3.6 GHz. The simulated port isolation is more than 34 dB. The proposed antenna element is suitable for potential base station applications.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130253231","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 : 2018-05-07DOI: 10.1109/ICMMT.2018.8563494
Haixin Jiang, Li-Ming Si, M. Xu, Bo Yang, X. Lv
In this letter, a high-directivity 5G antenna with near zero refractive index metamaterial is presented. Firstly, the near-zero refractive index metamaterial unit cell is designed by the parameter extraction method and then loaded into the designed 5G antenna through a reasonable arrangement. The gain of the antenna is improved by more than 6 dBi at $27sim 29$ GHz based on the near-zero refractive index metamaterial, and the maximum gain is 13.9 dBi at 28 GHz.
{"title":"A High Gain 5G Antenna with Near Zero Refractive Index Superstrate","authors":"Haixin Jiang, Li-Ming Si, M. Xu, Bo Yang, X. Lv","doi":"10.1109/ICMMT.2018.8563494","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563494","url":null,"abstract":"In this letter, a high-directivity 5G antenna with near zero refractive index metamaterial is presented. Firstly, the near-zero refractive index metamaterial unit cell is designed by the parameter extraction method and then loaded into the designed 5G antenna through a reasonable arrangement. The gain of the antenna is improved by more than 6 dBi at $27sim 29$ GHz based on the near-zero refractive index metamaterial, and the maximum gain is 13.9 dBi at 28 GHz.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130342889","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 : 2018-05-07DOI: 10.1109/ICMMT.2018.8563456
Yanfang Wang, F. Zhu, S. Gao
The design of a printed microstrip-fed patch antenna featuring characteristics of wideband and circular polarization has been proposed. The planar antenna is evolved from a typical monopole consisting of a rectangular radiating patch and a rectangular ground plane. The circular polarization has been obtained by shifting offset the radiating patch in correspondence with the ground. Moreover, a tapered-shaped feeding line has been employed to improve the impedance matching across a wide frequency band and two stubs have been integrated with the antenna to enhance the axial ratio bandwidth. The obtained results have confirmed that, the bandwidths of the proposed antenna with $mathbf{VSWR leq 2}$ and axial ratio $mathbf{leq 3}$ are 140% and 75%, respectively. In addition, the peak realized gain ranges from 1.25 to 3.2 dBi across the operating frequency range.
提出了一种具有宽带圆极化特性的印刷微带馈电贴片天线的设计。平面天线是由矩形辐射贴片和矩形接平面组成的典型单极子天线演变而来的。通过偏移与地面对应的辐射斑，得到了圆偏振。此外，采用锥形馈线改善了宽频带的阻抗匹配，并在天线中集成了两个短节以提高轴比带宽。结果表明，该天线的带宽为140，轴比为$mathbf{VSWR leq 2}$，轴比为$mathbf{leq 3}$% and 75%, respectively. In addition, the peak realized gain ranges from 1.25 to 3.2 dBi across the operating frequency range.
{"title":"Planar Microstrip-Fed Broadband Circularly Polarized Antenna","authors":"Yanfang Wang, F. Zhu, S. Gao","doi":"10.1109/ICMMT.2018.8563456","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563456","url":null,"abstract":"The design of a printed microstrip-fed patch antenna featuring characteristics of wideband and circular polarization has been proposed. The planar antenna is evolved from a typical monopole consisting of a rectangular radiating patch and a rectangular ground plane. The circular polarization has been obtained by shifting offset the radiating patch in correspondence with the ground. Moreover, a tapered-shaped feeding line has been employed to improve the impedance matching across a wide frequency band and two stubs have been integrated with the antenna to enhance the axial ratio bandwidth. The obtained results have confirmed that, the bandwidths of the proposed antenna with $mathbf{VSWR leq 2}$ and axial ratio $mathbf{leq 3}$ are 140% and 75%, respectively. In addition, the peak realized gain ranges from 1.25 to 3.2 dBi across the operating frequency range.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115237640","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}
Conformal microstrip antenna is an important study field in microwave and communications. In this paper, a novel design of miniaturized cylindrical conformal microstrip antenna (MCCMA) for multi-band DCS/Bluetooth/WLAN applications is proposed. It consists of a radiating element with a hexagon slot and several rectangular slots, a FR4 substrate, a coax feeding and GND. The miniaturization characteristic is achieved by using the rectangular slot to bend the path of the current. Simulation and analysis show that the antenna has a multi-band characteristic and can achieve a reduction of the size. A radius value of the antenna is $0.13lambda_{0}$ with respect to the lowest operating frequency centered at 1.8 GHz. It can cover the 1.8 GHz DCS, 2.45GHz/5.8GHz WLAN and 2.45GHz Bluetooth bands on HFSS Software. The simulated results show that the antenna has good radiation patterns across the operations which can be applied in present wireless communication system.
{"title":"Design of a Novel Multiband Miniaturized Cylindrical Conformal Microstrip Antenna","authors":"Fei Shen, Jiangnan Mu, Xiong Xu, Ruowu Wu, Kai Guo, Chaoyi Yin, Yuqi Fan, Zhongyi Guo","doi":"10.1109/ICMMT.2018.8563484","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563484","url":null,"abstract":"Conformal microstrip antenna is an important study field in microwave and communications. In this paper, a novel design of miniaturized cylindrical conformal microstrip antenna (MCCMA) for multi-band DCS/Bluetooth/WLAN applications is proposed. It consists of a radiating element with a hexagon slot and several rectangular slots, a FR4 substrate, a coax feeding and GND. The miniaturization characteristic is achieved by using the rectangular slot to bend the path of the current. Simulation and analysis show that the antenna has a multi-band characteristic and can achieve a reduction of the size. A radius value of the antenna is $0.13lambda_{0}$ with respect to the lowest operating frequency centered at 1.8 GHz. It can cover the 1.8 GHz DCS, 2.45GHz/5.8GHz WLAN and 2.45GHz Bluetooth bands on HFSS Software. The simulated results show that the antenna has good radiation patterns across the operations which can be applied in present wireless communication system.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128365393","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 : 2018-05-07DOI: 10.1109/ICMMT.2018.8563363
Nan Zhang, Yue-Lin Wang, Jianzhong Chen, Bian Wu, Gang Li
A KiKa-band diplex circular polarizer with high isolation is proposed in this paper, which is composed of a septum circular polarizer and a wide-band metal iris waveguide diplexer. The septum circular polarizer is utilized to realize the dual-band circular polarization, while the metal iris waveguide diplexer will provide dual channels with high isolation characteristic. The simulated results show that the proposed diplex circular polarizer operating at 19.6-23.5GHz and 27-31GHz, with a high isolation larger than 80dB and an axial ratio lower than 3dB, the whole size is 92mm×Φ20mm, which has the merits of dual-channel, high isolation, circular polarization and miniaturization.
{"title":"Design of K/Ka-Band Diplex Circular Polarizer with High Isolation","authors":"Nan Zhang, Yue-Lin Wang, Jianzhong Chen, Bian Wu, Gang Li","doi":"10.1109/ICMMT.2018.8563363","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563363","url":null,"abstract":"A KiKa-band diplex circular polarizer with high isolation is proposed in this paper, which is composed of a septum circular polarizer and a wide-band metal iris waveguide diplexer. The septum circular polarizer is utilized to realize the dual-band circular polarization, while the metal iris waveguide diplexer will provide dual channels with high isolation characteristic. The simulated results show that the proposed diplex circular polarizer operating at 19.6-23.5GHz and 27-31GHz, with a high isolation larger than 80dB and an axial ratio lower than 3dB, the whole size is 92mm×Φ20mm, which has the merits of dual-channel, high isolation, circular polarization and miniaturization.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"178 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126763635","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 : 2018-05-07DOI: 10.1109/ICMMT.2018.8563283
F. Zhu, Jin-ping Zhang, Zhipeng Zhou, S. Gao
A low-profile tightly coupled phased array antenna with the characteristics of 3:1 bandwidth and $mathbf{pm 45^{circ}scan}$ has been proposed in this paper. The array element consists of three layers of Duroid 5880 substrates and a couple of dipole arms. The novelty of the design is the loaded cross-shaped patch which is employed to avoid the common-mode resonance when unbalanced feeding the balanced dipoles. The obtained results confirm that, the array with 7mm spacing can operate from 7 to 21 GHz with VSWR $leq 2.5$ for 45°scan in both E-and H-planes. The absolute gain of embedded central element pattern is less than 0.6dB compared with the ideal gain, indicating low loss and good efficiency. It is also worth mentioning that, the whole thickness of the antenna is around 4.5mm, which means it is suitable for conformal platforms.
{"title":"Design of a Low-Profile 3:1 Bandwidth Wide-Scan Tightly Coupled Phased Array Antenna","authors":"F. Zhu, Jin-ping Zhang, Zhipeng Zhou, S. Gao","doi":"10.1109/ICMMT.2018.8563283","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563283","url":null,"abstract":"A low-profile tightly coupled phased array antenna with the characteristics of 3:1 bandwidth and $mathbf{pm 45^{circ}scan}$ has been proposed in this paper. The array element consists of three layers of Duroid 5880 substrates and a couple of dipole arms. The novelty of the design is the loaded cross-shaped patch which is employed to avoid the common-mode resonance when unbalanced feeding the balanced dipoles. The obtained results confirm that, the array with 7mm spacing can operate from 7 to 21 GHz with VSWR $leq 2.5$ for 45°scan in both E-and H-planes. The absolute gain of embedded central element pattern is less than 0.6dB compared with the ideal gain, indicating low loss and good efficiency. It is also worth mentioning that, the whole thickness of the antenna is around 4.5mm, which means it is suitable for conformal platforms.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126531458","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 : 2018-05-07DOI: 10.1109/ICMMT.2018.8563486
Chu‐Hui Chen, Y. Jiao, Z. Weng
A metal rim integrated open slot antenna with a band-stop matching circuit for LTE/WWAN smartphones is presented in this letter. The proposed antenna comprises two branch slots which share a same opening disposed at the top edge of the ground board, the longer open slot structure is excited by a $mathbf{50-Omega}$ microstrip line with a band-stop matching circuit. By adjusting the length of the slot, position of the microstrip line, values of the capacitor and the inductor, the antenna can cover the LTE/WWAN operations in the 698–960 MHz and 1710–2690 MHz bands. Simulated and measured results of the antenna are presented and discussed.
{"title":"A Metal Rim Integrated Open Slot Antenna with a Band-Stop Matching Circuit for LTE/WWAN Smartphones","authors":"Chu‐Hui Chen, Y. Jiao, Z. Weng","doi":"10.1109/ICMMT.2018.8563486","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563486","url":null,"abstract":"A metal rim integrated open slot antenna with a band-stop matching circuit for LTE/WWAN smartphones is presented in this letter. The proposed antenna comprises two branch slots which share a same opening disposed at the top edge of the ground board, the longer open slot structure is excited by a $mathbf{50-Omega}$ microstrip line with a band-stop matching circuit. By adjusting the length of the slot, position of the microstrip line, values of the capacitor and the inductor, the antenna can cover the LTE/WWAN operations in the 698–960 MHz and 1710–2690 MHz bands. Simulated and measured results of the antenna are presented and discussed.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114148584","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 : 2018-05-07DOI: 10.1109/ICMMT.2018.8563950
W. Cao, Mengqi Zhang, Yiyu Lin, Jinxin Li, Si-min Li
A novel dual-band miniaturized patch antenna with negative-refractive-index transmission lines (NRI-TLs) for UAV (Unmanned Aerial Vehicle) applications is proposed in this paper. The proposed antenna comprises two parts. One is a U-shaped cavity-backed antenna composed of a planar double-sector patch with two symmetrical meandering lines and a U-shaped backed-cavity. The other one is negative-refractive-index transmission lines, which are used to achieve size reduction for the U-shaped cavity-backed antenna. Although the U-shaped cavity-backed antenna and the proposed antenna have the same size of $36text{cm}times 40text{cm}times 25text{cm}$, the proposed antenna can operate in a lower frequency band. Due to the introduction of the negative-refractive-index transmission lines, the overall size reduction is up to 12.3%. This miniaturized patch antenna with NRI-TLs is well suited to the design of UAV system.
{"title":"A Novel Dual-Band Miniaturized Patch Antenna with NRI-TL for UAV Applications","authors":"W. Cao, Mengqi Zhang, Yiyu Lin, Jinxin Li, Si-min Li","doi":"10.1109/ICMMT.2018.8563950","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563950","url":null,"abstract":"A novel dual-band miniaturized patch antenna with negative-refractive-index transmission lines (NRI-TLs) for UAV (Unmanned Aerial Vehicle) applications is proposed in this paper. The proposed antenna comprises two parts. One is a U-shaped cavity-backed antenna composed of a planar double-sector patch with two symmetrical meandering lines and a U-shaped backed-cavity. The other one is negative-refractive-index transmission lines, which are used to achieve size reduction for the U-shaped cavity-backed antenna. Although the U-shaped cavity-backed antenna and the proposed antenna have the same size of $36text{cm}times 40text{cm}times 25text{cm}$, the proposed antenna can operate in a lower frequency band. Due to the introduction of the negative-refractive-index transmission lines, the overall size reduction is up to 12.3%. This miniaturized patch antenna with NRI-TLs is well suited to the design of UAV system.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114471844","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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