Pub Date : 2018-06-01DOI: 10.1109/MWSYM.2018.8439279
Nidhi Pandit, N. Pathak
This paper reports design and even-odd mode analysis of a reconfigurable band pass filter using the concept of spoof surface plasmon polaritons (SSPP). The designed filter consists of a crossed shape resonator in which tuning has been introduced using varactor diodes. The filter has been developed on a 60 mil thick laminate and characterized using Keysight Field-Fox analyzer N9918A. The characterized filter has a tunable center frequency from (3.43 - 3.88 GHz) with insertion loss less - 5 dB along with a tunable lower or upper band edge. The proposed reconfigurable filter will play an important role in the design and development of plasmonic circuits and systems.
{"title":"Reconfigurable Spoof Surface Plasmon Polaritons Based Band Pass Filter","authors":"Nidhi Pandit, N. Pathak","doi":"10.1109/MWSYM.2018.8439279","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439279","url":null,"abstract":"This paper reports design and even-odd mode analysis of a reconfigurable band pass filter using the concept of spoof surface plasmon polaritons (SSPP). The designed filter consists of a crossed shape resonator in which tuning has been introduced using varactor diodes. The filter has been developed on a 60 mil thick laminate and characterized using Keysight Field-Fox analyzer N9918A. The characterized filter has a tunable center frequency from (3.43 - 3.88 GHz) with insertion loss less - 5 dB along with a tunable lower or upper band edge. The proposed reconfigurable filter will play an important role in the design and development of plasmonic circuits and systems.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"75 1","pages":"224-227"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89209225","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439464
Leonard M. De La Cruz, A. G. Birdwell, M. Zaghloul, T. Ivanov
Current status of the GeTe phase change research at ARL is presented. The work covers determination of the power handling limits, both in ON and OFF condition, for state-of-the-art PCS technology. Maximum ON-state power handling, after 50 conditioning cycles, of 33dBm is reported. Experimental evidence of 75% reduction in the minimum energy to crystallize is presented. The effects of the applied external electric field are discussed. Also, initial results are shown for theoretical model of GeTe crystalization.
{"title":"GeTe Phase Change Research at the US Army Research Laboratory","authors":"Leonard M. De La Cruz, A. G. Birdwell, M. Zaghloul, T. Ivanov","doi":"10.1109/MWSYM.2018.8439464","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439464","url":null,"abstract":"Current status of the GeTe phase change research at ARL is presented. The work covers determination of the power handling limits, both in ON and OFF condition, for state-of-the-art PCS technology. Maximum ON-state power handling, after 50 conditioning cycles, of 33dBm is reported. Experimental evidence of 75% reduction in the minimum energy to crystallize is presented. The effects of the applied external electric field are discussed. Also, initial results are shown for theoretical model of GeTe crystalization.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"1 1","pages":"843-845"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90043804","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439413
Daniel Miek, A. Reinhardt, F. Daschner, M. Höft
In this paper an improved fully canonical waveguide filter which overcomes the major drawback of having a constant attenuation level apart from the passband is presented. By using the principle of resonant hole coupling it becomes possible to assign two additional transmission zeros in the stopband of the filter. These extra transmission zeros are far away from the passband and allow to hold the attenuation level deeper than usually. Measurement results from the improved filter as well as results from a normal fully canonical filter with the same dimensions are presented for comparison.
{"title":"Improved Fully Canonical W-Band Waveguide Filter","authors":"Daniel Miek, A. Reinhardt, F. Daschner, M. Höft","doi":"10.1109/MWSYM.2018.8439413","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439413","url":null,"abstract":"In this paper an improved fully canonical waveguide filter which overcomes the major drawback of having a constant attenuation level apart from the passband is presented. By using the principle of resonant hole coupling it becomes possible to assign two additional transmission zeros in the stopband of the filter. These extra transmission zeros are far away from the passband and allow to hold the attenuation level deeper than usually. Measurement results from the improved filter as well as results from a normal fully canonical filter with the same dimensions are presented for comparison.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"1 1","pages":"1245-1248"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83056517","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439596
T. Kanar, S. Zihir, N. Yanduru
This paper presents the state-of-the-art millimeter wave IC development for 5G communication systems in various frequency bands. 2×2 TRX beamformer IC's at 26, 28 and 39 GHz achieve <2° RMS phase error, high channel-to-channel isolation, low-power consumption (<250 mW in TX and <200 mW RX modes, per channel), and include fast T/R switching (<100 ns), 4-level fast phase and gain weighting memory access (<30 ns) and temperature reporting. Ultra-compact IC's enable low-cost panel implementations as well as modular and cost effective system-in-package (SiP) solutions for 5G flat panel phased array systems.
{"title":"Ultra-Compact and Modular 5G Phased-Array 4-Channel Beamformer Front-Ends with <2° RMS Phase Error","authors":"T. Kanar, S. Zihir, N. Yanduru","doi":"10.1109/MWSYM.2018.8439596","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439596","url":null,"abstract":"This paper presents the state-of-the-art millimeter wave IC development for 5G communication systems in various frequency bands. 2×2 TRX beamformer IC's at 26, 28 and 39 GHz achieve <2° RMS phase error, high channel-to-channel isolation, low-power consumption (<250 mW in TX and <200 mW RX modes, per channel), and include fast T/R switching (<100 ns), 4-level fast phase and gain weighting memory access (<30 ns) and temperature reporting. Ultra-compact IC's enable low-cost panel implementations as well as modular and cost effective system-in-package (SiP) solutions for 5G flat panel phased array systems.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"186 1","pages":"1327-1329"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80693066","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439132
Chaojiang Li, O. El-Aassar, Arvind Kumar, Myra Boenke, Gabriel M. Rebeiz
In this paper we first discuss about how to select the device type to get best LNA NF for applications ranging from sub-6GHz to 5G mm-Wave Ka-band. A prototype Ka-band fully integrated LNA is designed and fabricated in 45nm CMOS SOI process with a chip area of $mathbf{530}pmb{mu} mathbf{m}times mathbf{570}pmb{mu}mathbf{m}$. The LNA achieves a 3-dB bandwidth greater than 10 GHz while the NF remains below 2dB. From 24 to 28 GHz, the LNA achieves a gain of 14–12.8dB, IIP3 of 4–5 dBm, and NF around 1.4 dB (1.3-1.6 dB over several tests), from a 1.5 V supply with 10mA of current. In low power mode, the NF is around 1.5dB with a gain of 12.6dB and 7mW power consumption. To the authors knowledge, this is the best NF achieved at 28 GHz by any CMOS process and close to latest GaAs data with FOM larger than 250.
{"title":"LNA Design with CMOS SOI Process-l.4dB NF K/Ka band LNA","authors":"Chaojiang Li, O. El-Aassar, Arvind Kumar, Myra Boenke, Gabriel M. Rebeiz","doi":"10.1109/MWSYM.2018.8439132","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439132","url":null,"abstract":"In this paper we first discuss about how to select the device type to get best LNA NF for applications ranging from sub-6GHz to 5G mm-Wave Ka-band. A prototype Ka-band fully integrated LNA is designed and fabricated in 45nm CMOS SOI process with a chip area of $mathbf{530}pmb{mu} mathbf{m}times mathbf{570}pmb{mu}mathbf{m}$. The LNA achieves a 3-dB bandwidth greater than 10 GHz while the NF remains below 2dB. From 24 to 28 GHz, the LNA achieves a gain of 14–12.8dB, IIP3 of 4–5 dBm, and NF around 1.4 dB (1.3-1.6 dB over several tests), from a 1.5 V supply with 10mA of current. In low power mode, the NF is around 1.5dB with a gain of 12.6dB and 7mW power consumption. To the authors knowledge, this is the best NF achieved at 28 GHz by any CMOS process and close to latest GaAs data with FOM larger than 250.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"9 1","pages":"1484-1486"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80720063","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439270
V. Palazzi, P. Mezzanotte, L. Roselli
This work presents a novel reconfigurable beamforming network for conformal multiple-input multiple-output (MIMO) antenna topologies. In particular, the proposed $mathbf{1} times mathbf{4}$ feed network is thought for a four-element antenna cube, and, by selectively feeding either single antennas or couples of adjacent elements, is able to generate eight equally-spaced steerable beams over 360° on the azimuthal plane. A prototype in microstrip technology, designed to operate in the recently released C band (3.4-3.8 GHz) for 5G applications, has been tested, confirming the adequate behavior of the network.
{"title":"A Novel Agile Phase-Controlled Beamforming Network Intended for 360° Angular Scanning in MIMO Applications","authors":"V. Palazzi, P. Mezzanotte, L. Roselli","doi":"10.1109/MWSYM.2018.8439270","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439270","url":null,"abstract":"This work presents a novel reconfigurable beamforming network for conformal multiple-input multiple-output (MIMO) antenna topologies. In particular, the proposed $mathbf{1} times mathbf{4}$ feed network is thought for a four-element antenna cube, and, by selectively feeding either single antennas or couples of adjacent elements, is able to generate eight equally-spaced steerable beams over 360° on the azimuthal plane. A prototype in microstrip technology, designed to operate in the recently released C band (3.4-3.8 GHz) for 5G applications, has been tested, confirming the adequate behavior of the network.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"1 1","pages":"624-627"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83393073","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439251
Sarvin Rezayat, Christopher Kappelmann, Zachary Hays, Lucilia Hays, C. Baylis, E. Viveiros, A. Semnani, D. Peroulis
In the dynamic spectrum access paradigm, operating frequency and bandwidth are assigned in real time. Presently the S-band radar allocation is highly coveted for spectrum sharing with wireless communications. To share the band with wireless systems, next-generation radar transmitters must be able to reconfigure in both frequency and spectrum usage in real time. We demonstrate S-band reconfigurability of a high-power tunable evanescent-mode cavity matching network capable of 90 $mathrm{w}$ of RF power handling. The system can switch between different operating frequencies, optimizing its power-added efficiency (PAE) while meeting simultaneous adjacent-channel power ratio (ACPR) constraints. This reconfiguration capability provides a useful building block for dynamic coexistence of a radar transmitter with other wireless systems in the S band.
{"title":"Real-Time Frequency-Agile $mathrm{Circuit}$ Reconfiguration for S-Band Radar Using a High-Power Tunable Resonant Cavity Matching Network","authors":"Sarvin Rezayat, Christopher Kappelmann, Zachary Hays, Lucilia Hays, C. Baylis, E. Viveiros, A. Semnani, D. Peroulis","doi":"10.1109/MWSYM.2018.8439251","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439251","url":null,"abstract":"In the dynamic spectrum access paradigm, operating frequency and bandwidth are assigned in real time. Presently the S-band radar allocation is highly coveted for spectrum sharing with wireless communications. To share the band with wireless systems, next-generation radar transmitters must be able to reconfigure in both frequency and spectrum usage in real time. We demonstrate S-band reconfigurability of a high-power tunable evanescent-mode cavity matching network capable of 90 $mathrm{w}$ of RF power handling. The system can switch between different operating frequencies, optimizing its power-added efficiency (PAE) while meeting simultaneous adjacent-channel power ratio (ACPR) constraints. This reconfiguration capability provides a useful building block for dynamic coexistence of a radar transmitter with other wireless systems in the S band.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"58 1","pages":"915-918"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84757047","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439556
Wentao Lin, Tae‐Hak Lee, K. Wu
This paper presents a fully reconfigurable dual-mode bandpass filter based on substrate integrated circular cavity technique (SICC). Dual-modes are excited orthogonally for miniaturization, which can be mutually coupled by the use of a cavity perturbation technique. Varactor diodes are used to tune cavity resonant frequencies independently since the arranged tuning units are only set for affecting one of the related modes. Combining controlled external coupling, all parametric tunings are achieved such as center frequency, bandwidth, transmission zero and other reconfigurable filtering characteristics. On the basis of tunable resonant frequencies, quasi-elliptical, linear phase and intrinsic-switching capability are obtained. For an experimental validation of the proposed structure, a dual-mode bandpass filter was fabricated and measured. As one example of the quasi-elliptical response, a constant absolute bandwidth of 200 MHz in the tuning range 2.83–3.55 GHz with insertion loss of 1.76–5.08 dB is observed in our experiments.
{"title":"Fully Reconfigurable Dual-Mode Bandpass Filter","authors":"Wentao Lin, Tae‐Hak Lee, K. Wu","doi":"10.1109/MWSYM.2018.8439556","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439556","url":null,"abstract":"This paper presents a fully reconfigurable dual-mode bandpass filter based on substrate integrated circular cavity technique (SICC). Dual-modes are excited orthogonally for miniaturization, which can be mutually coupled by the use of a cavity perturbation technique. Varactor diodes are used to tune cavity resonant frequencies independently since the arranged tuning units are only set for affecting one of the related modes. Combining controlled external coupling, all parametric tunings are achieved such as center frequency, bandwidth, transmission zero and other reconfigurable filtering characteristics. On the basis of tunable resonant frequencies, quasi-elliptical, linear phase and intrinsic-switching capability are obtained. For an experimental validation of the proposed structure, a dual-mode bandpass filter was fabricated and measured. As one example of the quasi-elliptical response, a constant absolute bandwidth of 200 MHz in the tuning range 2.83–3.55 GHz with insertion loss of 1.76–5.08 dB is observed in our experiments.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"1 1","pages":"397-400"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88659416","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439851
Ramon Lopez La Valle, Javier G. García, P. A. Roncagliolo
This paper presents a dual-band RF front-end architecture designed for simultaneously receiving the L1 and L5 signals of the Global Positioning System (GPS). The use of the new L5 signal can improve the accuracy and reliability of the typical mass-market receivers that rely only on the L1 signal. The proposed architecture is based on a compact microstrip diplexer that separates the two bands of interest providing the necessary filtering. Each band is down-converted independently and then both are combined at intermediate frequency (IF) in order to obtain one analog output. This front-end architecture is suitable for implementing a programmable high accuracy GPS receiver using a generic digital signal processing platform. The current work focuses on the diplexer design as well as the selection of the sampling rate and frequency plan required to avoid band overlapping before and after the analog to digital conversion. Satisfactory measurement results of the diplexer are presented.
{"title":"A Dual-Band RF Front-End Architecture for Accurate and Reliable GPS Receivers","authors":"Ramon Lopez La Valle, Javier G. García, P. A. Roncagliolo","doi":"10.1109/MWSYM.2018.8439851","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439851","url":null,"abstract":"This paper presents a dual-band RF front-end architecture designed for simultaneously receiving the L1 and L5 signals of the Global Positioning System (GPS). The use of the new L5 signal can improve the accuracy and reliability of the typical mass-market receivers that rely only on the L1 signal. The proposed architecture is based on a compact microstrip diplexer that separates the two bands of interest providing the necessary filtering. Each band is down-converted independently and then both are combined at intermediate frequency (IF) in order to obtain one analog output. This front-end architecture is suitable for implementing a programmable high accuracy GPS receiver using a generic digital signal processing platform. The current work focuses on the diplexer design as well as the selection of the sampling rate and frequency plan required to avoid band overlapping before and after the analog to digital conversion. Satisfactory measurement results of the diplexer are presented.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"22 1","pages":"995-998"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87179576","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 : 2018-06-01DOI: 10.1109/MWSYM.2018.8439335
A. Cooman, F. Seyfert, S. Amari
The impedance of a microwave circuit has an infinite number of poles due to the distributed elements. This complicates locating those poles with a rational approximation. In this paper, we propose an algorithm to locate the unstable poles of a circuit with distributed elements. The proposed method exploits the fact that a realistic circuit can only have a finite number of unstable poles. We first determine the unstable part whose poles coincide with the unstable poles of the circuit. A rational approximation of the unstable part is used to estimate the unstable poles.
{"title":"Estimating unstable poles in simulations of microwave circuits","authors":"A. Cooman, F. Seyfert, S. Amari","doi":"10.1109/MWSYM.2018.8439335","DOIUrl":"https://doi.org/10.1109/MWSYM.2018.8439335","url":null,"abstract":"The impedance of a microwave circuit has an infinite number of poles due to the distributed elements. This complicates locating those poles with a rational approximation. In this paper, we propose an algorithm to locate the unstable poles of a circuit with distributed elements. The proposed method exploits the fact that a realistic circuit can only have a finite number of unstable poles. We first determine the unstable part whose poles coincide with the unstable poles of the circuit. A rational approximation of the unstable part is used to estimate the unstable poles.","PeriodicalId":6675,"journal":{"name":"2018 IEEE/MTT-S International Microwave Symposium - IMS","volume":"39 2 1","pages":"97-100"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84698594","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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