Pub Date : 2003-06-08DOI: 10.1109/MWSYM.2003.1210563
Yu Zhang, W. Hong, F. Xu, K. Wu, T. Cui
In this paper, a novel finite difference frequency domain (FDFD) algorithm is proposed for the analysis of substrate integrated waveguide (SIW) guided-wave problems where the perfectly matched layer (PML) has been chosen as the absorbing boundary condition and the Floquet theorem has been used to consider the periodic structure. Using the above method, the guided-wave problem is then converted to a generalized matrix eigenvalue problem and finally transformed to a standard matrix eigenvalue problem, which can be easily solved with many efficient available subroutines. Excellent agreements of numerical simulations and experimental results show the validity and efficiency of the proposed algorithm.
{"title":"Analysis of guided-wave problems in substrate integrated waveguides -numerical simulations and experimental results","authors":"Yu Zhang, W. Hong, F. Xu, K. Wu, T. Cui","doi":"10.1109/MWSYM.2003.1210563","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210563","url":null,"abstract":"In this paper, a novel finite difference frequency domain (FDFD) algorithm is proposed for the analysis of substrate integrated waveguide (SIW) guided-wave problems where the perfectly matched layer (PML) has been chosen as the absorbing boundary condition and the Floquet theorem has been used to consider the periodic structure. Using the above method, the guided-wave problem is then converted to a generalized matrix eigenvalue problem and finally transformed to a standard matrix eigenvalue problem, which can be easily solved with many efficient available subroutines. Excellent agreements of numerical simulations and experimental results show the validity and efficiency of the proposed algorithm.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121946934","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1212530
N. Fong, Jean-Olivier Plowhart, Noah Zamdme, Jonghae Kim, K. Jenkins, C. Plett, Microelectronics
A solenoid layout technique is used to increase the magnetic coupling between the coils in multi-level spiral transformers. Using this technique, transformers with the following performance are measured: (a) magnetic coupling with coupling factor k>0.95 and insertion loss s/sub 21/ better than 0.8 dB at 5 GHz; (b) self-resonant frequency f/sub res/>15 GHz with peak Q>10. The effect of high and low resistive substrates is discussed with measured results. Using this structure, the size of the transformer can be reduced from 50 to 400%.
{"title":"High-performance and area-efficient stacked transformers for RF CMOS integrated circuits","authors":"N. Fong, Jean-Olivier Plowhart, Noah Zamdme, Jonghae Kim, K. Jenkins, C. Plett, Microelectronics","doi":"10.1109/MWSYM.2003.1212530","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1212530","url":null,"abstract":"A solenoid layout technique is used to increase the magnetic coupling between the coils in multi-level spiral transformers. Using this technique, transformers with the following performance are measured: (a) magnetic coupling with coupling factor k>0.95 and insertion loss s/sub 21/ better than 0.8 dB at 5 GHz; (b) self-resonant frequency f/sub res/>15 GHz with peak Q>10. The effect of high and low resistive substrates is discussed with measured results. Using this structure, the size of the transformer can be reduced from 50 to 400%.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124523481","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1210993
J. Hayashi, Y. Nikawa
A TE/sub 10/ mode dielectric LTCC (low temperature co-fired ceramic) filter using a cross patch is proposed. The LTCC filter is designed as a lumped circuit without a cross patch. The filter is designed by lumped elements and converted to an LTCC filter. The characteristics of the filter are simulated by finite element methods (FEM). The center frequency of the filter is 6 GHz; and the bandwidth is 500 MHz. The simulated results of the filter are compared with the experimental ones and agree well. An LTCC filter, using the same design procedure, is applied to one using a cross patch. This cross patch is useful for making the attenuation poles. It works as the TEM transmission in the LTCC filter. As a result, it realizes an attenuation pole. An LTCC filter using a cross patch is designed at a center frequency of 25 GHz.
{"title":"Improvement of characteristics using cross patch in the LTCC filter","authors":"J. Hayashi, Y. Nikawa","doi":"10.1109/MWSYM.2003.1210993","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210993","url":null,"abstract":"A TE/sub 10/ mode dielectric LTCC (low temperature co-fired ceramic) filter using a cross patch is proposed. The LTCC filter is designed as a lumped circuit without a cross patch. The filter is designed by lumped elements and converted to an LTCC filter. The characteristics of the filter are simulated by finite element methods (FEM). The center frequency of the filter is 6 GHz; and the bandwidth is 500 MHz. The simulated results of the filter are compared with the experimental ones and agree well. An LTCC filter, using the same design procedure, is applied to one using a cross patch. This cross patch is useful for making the attenuation poles. It works as the TEM transmission in the LTCC filter. As a result, it realizes an attenuation pole. An LTCC filter using a cross patch is designed at a center frequency of 25 GHz.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129755180","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1212602
Jia-Liang Chen, Sheng-Fuh Chang, Che Liu, Hsih-Wei Kuo
A millimeterwave bandpass MMIC amplifier, which integrates both features of gain amplifier and bandpass filter, is presented. A synthesis method for such amplifier is developed from the image-parameter filter theory. By employing the proposed bandpass amplifier in a receiver, the bulky of chip filter may not be required. An experimental chip fabricated by 0.1 /spl mu/m PHEMT shows 14.2dB gain from 20 to 40 GHz and 60-dB attenuation below 7 GHz and above 60 GHz. This confirms the proposed method and shows the feasibility of the function integration of gain amplifier with bandpass filter in the millimeterwave range.
{"title":"Design of a 20-to-40 GHz bandpass MMIC amplifier","authors":"Jia-Liang Chen, Sheng-Fuh Chang, Che Liu, Hsih-Wei Kuo","doi":"10.1109/MWSYM.2003.1212602","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1212602","url":null,"abstract":"A millimeterwave bandpass MMIC amplifier, which integrates both features of gain amplifier and bandpass filter, is presented. A synthesis method for such amplifier is developed from the image-parameter filter theory. By employing the proposed bandpass amplifier in a receiver, the bulky of chip filter may not be required. An experimental chip fabricated by 0.1 /spl mu/m PHEMT shows 14.2dB gain from 20 to 40 GHz and 60-dB attenuation below 7 GHz and above 60 GHz. This confirms the proposed method and shows the feasibility of the function integration of gain amplifier with bandpass filter in the millimeterwave range.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129360446","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1210538
W. Mayer, M. Wetzel, W. Menzel
The principle, design and experimental results of a simple direct imaging radar sensor are presented. The FM-CW radar principle and a frequency scanned antenna are combined with waveforms of different frequency slopes in such a way that angular and range information are provided by the amplitude envelope of a fixed video frequency. The sensor architecture uses a minimum of active RF components and digital signal processing. With low cost frequency scanned antennas, this architecture can be applied in radar surveillance stations or automotive side looking sensors.
{"title":"A novel direct-imaging radar sensor with frequency scanned antenna","authors":"W. Mayer, M. Wetzel, W. Menzel","doi":"10.1109/MWSYM.2003.1210538","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210538","url":null,"abstract":"The principle, design and experimental results of a simple direct imaging radar sensor are presented. The FM-CW radar principle and a frequency scanned antenna are combined with waveforms of different frequency slopes in such a way that angular and range information are provided by the amplitude envelope of a fixed video frequency. The sensor architecture uses a minimum of active RF components and digital signal processing. With low cost frequency scanned antennas, this architecture can be applied in radar surveillance stations or automotive side looking sensors.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127086210","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1210943
R. Islam, G. Eleftheriades
A metamaterial coupler made of a regular microstrip line and a negative-refractive-index (NRI) line is examined. Peculiar coupling effects are observed in which co-directional traveling waves result in contra-directional Poynting vectors on the lines thus leading to power being coupled backwards. This coupler demonstrates better performance in terms of coupled power and port isolation, but at a slightly reduced bandwidth, when compared to a commensurate regular microstrip coupled-line coupler.
{"title":"A planar metamaterial co-directional coupler that couples power backwards","authors":"R. Islam, G. Eleftheriades","doi":"10.1109/MWSYM.2003.1210943","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210943","url":null,"abstract":"A metamaterial coupler made of a regular microstrip line and a negative-refractive-index (NRI) line is examined. Peculiar coupling effects are observed in which co-directional traveling waves result in contra-directional Poynting vectors on the lines thus leading to power being coupled backwards. This coupler demonstrates better performance in terms of coupled power and port isolation, but at a slightly reduced bandwidth, when compared to a commensurate regular microstrip coupled-line coupler.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127426264","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1210609
D. Allen, D. Bryant, W. Gaiewski
This paper discusses the development of a 25.5 GHz to 76.5 GHz single stage active frequency tripler for automotive radar applications. With an input drive level of 17 dBm at f/3, the frequency triplers tested demonstrated an output power level of 0 dBm from 73 to 82 GHz. The frequency tripler was subsequently cascaded with a 25.5 GHz VCO to demonstrate a 76.5 GHz VCO.
{"title":"25.5 to 76.5GHz active frequency tripler for automotive radar applications","authors":"D. Allen, D. Bryant, W. Gaiewski","doi":"10.1109/MWSYM.2003.1210609","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210609","url":null,"abstract":"This paper discusses the development of a 25.5 GHz to 76.5 GHz single stage active frequency tripler for automotive radar applications. With an input drive level of 17 dBm at f/3, the frequency triplers tested demonstrated an output power level of 0 dBm from 73 to 82 GHz. The frequency tripler was subsequently cascaded with a 25.5 GHz VCO to demonstrate a 76.5 GHz VCO.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129920462","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1212624
T. Kiwa, M. Tonouchi
A new type of optical-microwave converter utilizing a photomixer and a high-T/sub C/ Josephson junction detector has been developed. The frequency difference of two laser beams has been observed in the characteristic of the high-T/sub C/ Josephson junction detector. The measured response of the detector for the microwave generated by photomixing two lasers suggests that the system can work as a highly sensitive wavelength meter with accuracy of /spl plusmn/3.5 pm. The system operation up to 20 GHz was also demonstrated by changing the wavelength of two laser beams.
{"title":"Optical-microwave converter: superconductor/photomixer hybrid system","authors":"T. Kiwa, M. Tonouchi","doi":"10.1109/MWSYM.2003.1212624","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1212624","url":null,"abstract":"A new type of optical-microwave converter utilizing a photomixer and a high-T/sub C/ Josephson junction detector has been developed. The frequency difference of two laser beams has been observed in the characteristic of the high-T/sub C/ Josephson junction detector. The measured response of the detector for the microwave generated by photomixing two lasers suggests that the system can work as a highly sensitive wavelength meter with accuracy of /spl plusmn/3.5 pm. The system operation up to 20 GHz was also demonstrated by changing the wavelength of two laser beams.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122368740","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1210988
Chi-Ho Chang, Hsien-Shun Wu, Jay Yang, Ching-Kuang C. Tzuang
An experimental proof-of-concept two-terminal single-input and single-output (SISO) 1.7GHz/4.1GHz dual-band filter is presented. It incorporates the so-call frequency-selective resonators that are composite in structure, cascading a microstrip and microstrip on a two-dimensional periodical surface or the so-called PBG (photonic bandgap) ground plane. The composite resonators add additional degrees of freedom for controlling the relative positions of the passband center frequencies. Thus making the dual-band filters, which essential share one common layout. Measured and theoretical filter characteristics for such coalesced dual-band filter agree excellently, validating the proposed concepts.
{"title":"Coalesced single-input single-output dual-band filter","authors":"Chi-Ho Chang, Hsien-Shun Wu, Jay Yang, Ching-Kuang C. Tzuang","doi":"10.1109/MWSYM.2003.1210988","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210988","url":null,"abstract":"An experimental proof-of-concept two-terminal single-input and single-output (SISO) 1.7GHz/4.1GHz dual-band filter is presented. It incorporates the so-call frequency-selective resonators that are composite in structure, cascading a microstrip and microstrip on a two-dimensional periodical surface or the so-called PBG (photonic bandgap) ground plane. The composite resonators add additional degrees of freedom for controlling the relative positions of the passband center frequencies. Thus making the dual-band filters, which essential share one common layout. Measured and theoretical filter characteristics for such coalesced dual-band filter agree excellently, validating the proposed concepts.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130210960","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 : 2003-06-08DOI: 10.1109/MWSYM.2003.1210467
Y. Woo, Jaehyok Yi, Youngoo Yang, Bumman Kim
This paper describes a LINC (Linear Amplification using Nonlinear Components) handset transmitter adopting DC bias control. The power amplifier is operated at a saturated output power level and its level is adjusted by DC bias control. Thus the transmitter guarantees high efficiency at all usable output power level. Due to the LINC linearization, it can operate as a linear power amplifier. The new LINC transmitter can be used as a transmitter for software defined radio (SDR), since it can efficiently amplify both the GSM type constant envelope signal and CDMA type non-constant envelope signal, and its control part is very simple and mostly embodied in the digital domain. For verification, a 1.71 GHz LINC prototype transmitter has been implemented and tested. The results, compared with conventional cases, clearly show the suitability of the new LINC transmitter for SDR application.
本文介绍了一种采用直流偏置控制的LINC (Linear Amplification using Nonlinear Components)手机发射机。该功率放大器工作在饱和输出功率电平，其电平由直流偏置控制调节。因此，发射机保证在所有可用的输出功率水平的高效率。由于线性线性化，它可以作为一个线性功率放大器工作。这种新型的LINC发射机既能有效地放大GSM型恒定包络信号，又能有效地放大CDMA型非恒定包络信号，而且其控制部分非常简单，主要体现在数字域，可作为软件定义无线电(SDR)的发射机。为了验证，已经实现并测试了一个1.71 GHz的LINC原型发射机。结果表明，与传统案例相比，新型LINC发射机适合SDR应用。
{"title":"SDR transmitter based on LINC amplifier with bias control","authors":"Y. Woo, Jaehyok Yi, Youngoo Yang, Bumman Kim","doi":"10.1109/MWSYM.2003.1210467","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210467","url":null,"abstract":"This paper describes a LINC (Linear Amplification using Nonlinear Components) handset transmitter adopting DC bias control. The power amplifier is operated at a saturated output power level and its level is adjusted by DC bias control. Thus the transmitter guarantees high efficiency at all usable output power level. Due to the LINC linearization, it can operate as a linear power amplifier. The new LINC transmitter can be used as a transmitter for software defined radio (SDR), since it can efficiently amplify both the GSM type constant envelope signal and CDMA type non-constant envelope signal, and its control part is very simple and mostly embodied in the digital domain. For verification, a 1.71 GHz LINC prototype transmitter has been implemented and tested. The results, compared with conventional cases, clearly show the suitability of the new LINC transmitter for SDR application.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131004670","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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