Pub Date : 2018-09-01DOI: 10.23919/EURAD.2018.8546541
A. Chung, M. B. Rejeb, A. Darwish, H. A. Hung, S. Boumaiza
In this paper we propose a compensation technique for millimeter wave (mm-wave) frequency doubler based outphasing system adopted to generate wideband vector modulated signals. The compensation technique utilizes multi-tone test signals to detect the system's distortions. These include the frequency doubler's unavoidable non-linearity due to the band limitation of the phase modulated outphasing signals and the gain and phase mismatch between the two outphasing signal paths. For that, an interleaved multi-tone modulated signal is used to characterize these non-idealities and synthesize a memoryless predistorter and a linear outphasing mismatch compensation filter to mitigate their effects. These blocks are subsequently applied for generating digitally modulated signals at 25 GHz with modulation bandwidths of 80 and 160 MHz with improved quality of signal.
{"title":"Frequency Doubler Based Outphasing System for Millimeter Wave Vector Signal Generation","authors":"A. Chung, M. B. Rejeb, A. Darwish, H. A. Hung, S. Boumaiza","doi":"10.23919/EURAD.2018.8546541","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546541","url":null,"abstract":"In this paper we propose a compensation technique for millimeter wave (mm-wave) frequency doubler based outphasing system adopted to generate wideband vector modulated signals. The compensation technique utilizes multi-tone test signals to detect the system's distortions. These include the frequency doubler's unavoidable non-linearity due to the band limitation of the phase modulated outphasing signals and the gain and phase mismatch between the two outphasing signal paths. For that, an interleaved multi-tone modulated signal is used to characterize these non-idealities and synthesize a memoryless predistorter and a linear outphasing mismatch compensation filter to mitigate their effects. These blocks are subsequently applied for generating digitally modulated signals at 25 GHz with modulation bandwidths of 80 and 160 MHz with improved quality of signal.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"38 1","pages":"1469-1472"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81312423","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 : 2018-09-01DOI: 10.23919/EUMC.2018.8541685
M. A. Campo, D. Blanco, G. Carluccio, O. Litschke, S. Bruni, N. Llombart
The exponentially increasing demand for highspeed wireless links can be only efficiently satisfied with the development of future XG wireless communication networks, based on higher carrier signal frequencies, starting from 100 GHz. In this contribution, a circularly polarized G-band leaky-wave fed lens antenna with an integrated dielectric grid polarizer is presented, which can fulfill the challenging requirements for these future XG networks. A design is proposed in low dielectric permittivity material with a feed matching better than −10dB over a 44 % of relative bandwidth. The circularly polarized lens aperture efficiency is higher than 75% over a 35 % relative bandwidth, with an axial ratio lower than 3dB. Analytical tools have been applied to optimize the lens aperture efficiency, validating the results via full wave simulations. A lens prototype has been now fabricated and is currently being measured.
{"title":"Circularly Polarized Lens Antenna for Tbps Wireless Communications","authors":"M. A. Campo, D. Blanco, G. Carluccio, O. Litschke, S. Bruni, N. Llombart","doi":"10.23919/EUMC.2018.8541685","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541685","url":null,"abstract":"The exponentially increasing demand for highspeed wireless links can be only efficiently satisfied with the development of future XG wireless communication networks, based on higher carrier signal frequencies, starting from 100 GHz. In this contribution, a circularly polarized G-band leaky-wave fed lens antenna with an integrated dielectric grid polarizer is presented, which can fulfill the challenging requirements for these future XG networks. A design is proposed in low dielectric permittivity material with a feed matching better than −10dB over a 44 % of relative bandwidth. The circularly polarized lens aperture efficiency is higher than 75% over a 35 % relative bandwidth, with an axial ratio lower than 3dB. Analytical tools have been applied to optimize the lens aperture efficiency, validating the results via full wave simulations. A lens prototype has been now fabricated and is currently being measured.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"29 1","pages":"1147-1150"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87877576","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 : 2018-09-01DOI: 10.23919/EUMC.2018.8541552
Jameel Showail, M. Lahti, Kautio Kari, E. Arabi, P. Rantakari, I. Huhtinen, T. Vaha-Heikkila, A. Shamim
Two three dimensional (3D) integrated System on Package (SoP) Low Temperature Co-fired Ceramic (LTCC) two-stage SIW single cavity filters with embedded planar resonators are designed, fabricated and tested. The embedded resonators create a two-stage effect in a single cavity filter. The design with a stripline ring around the center post of the cavity provides a 13% fractional bandwidth with a center frequency of 28.21 GHz, and with an insertion loss of −0.82 dB. The design that feeds at the middle of a stripline resonator provides a 15% fractional bandwidth at a center frequency of 28.12 GHz, and with an insertion loss of −0.53 dB.
{"title":"SIW Cavity Filters with Embedded Planar Resonators in LTCC Package for 5G Applications","authors":"Jameel Showail, M. Lahti, Kautio Kari, E. Arabi, P. Rantakari, I. Huhtinen, T. Vaha-Heikkila, A. Shamim","doi":"10.23919/EUMC.2018.8541552","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541552","url":null,"abstract":"Two three dimensional (3D) integrated System on Package (SoP) Low Temperature Co-fired Ceramic (LTCC) two-stage SIW single cavity filters with embedded planar resonators are designed, fabricated and tested. The embedded resonators create a two-stage effect in a single cavity filter. The design with a stripline ring around the center post of the cavity provides a 13% fractional bandwidth with a center frequency of 28.21 GHz, and with an insertion loss of −0.82 dB. The design that feeds at the middle of a stripline resonator provides a 15% fractional bandwidth at a center frequency of 28.12 GHz, and with an insertion loss of −0.53 dB.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"4 1","pages":"757-760"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87727958","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 : 2018-09-01DOI: 10.23919/EUMC.2018.8541813
G. Phung, F. Schmückle, R. Doerner, W. Heinrich, T. Probst, U. Arz
On-wafer measurements at microwave and mmwave frequencies require reliable calibration processes to deduct unwanted effects such as the impact of probe, the wafer environment, and the instrumentation equipment itself. However, with increasing frequencies the calibrated results become more and more sensitive to parasitic effects such as radiation, multimode propagation, and substrate modes. This paper investigates their influence when using a typical coplanar waveguide (CPW) calibration substrate at G band. The goal of this paper is to clarify the role of substrate modes and to quantify how they affect multiline Thru-Reflect Line (mTRL) calibration.
{"title":"Impact of Substrate Modes on mTRL-Calibrated CPW Measurements in G Band","authors":"G. Phung, F. Schmückle, R. Doerner, W. Heinrich, T. Probst, U. Arz","doi":"10.23919/EUMC.2018.8541813","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541813","url":null,"abstract":"On-wafer measurements at microwave and mmwave frequencies require reliable calibration processes to deduct unwanted effects such as the impact of probe, the wafer environment, and the instrumentation equipment itself. However, with increasing frequencies the calibrated results become more and more sensitive to parasitic effects such as radiation, multimode propagation, and substrate modes. This paper investigates their influence when using a typical coplanar waveguide (CPW) calibration substrate at G band. The goal of this paper is to clarify the role of substrate modes and to quantify how they affect multiline Thru-Reflect Line (mTRL) calibration.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"31 1","pages":"194-197"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82799779","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 : 2018-09-01DOI: 10.23919/EUMC.2018.8541450
A. Nassar, S. Senega, S. Lindenmeier
A new multi-channel algorithm for satellite digital audio radio services (SDARS) with scan-phase-antenna diversity at the SiriusXM high band is presented. Considering reception via four different satellite frequency bands simultaneously, the algorithm controls microwave phase shifters as well as switches of a diversity circuit in order to combine different antenna signals for a minimized overall bit error probability. On basis of a simple level detection, the in-phase and quadrature components are derived for all frequency bands and an overall bit error probability is estimated, which is minimized via the switching and phase constellation of the microwave diversity circuit. For the verification of the algorithm, antenna signals of a micro-diversity antenna set are received in real scenario test drives underneath dense foliage which are fed into a scan-phase diversity circuit. Even in unconventional antenna mounting positions the antenna diversity measurements with the novel multi-channel algorithm show a significant improvement of the reception quality in comparison to single antennas.
{"title":"A Multi-Channel Algorithm for Antenna Diversity of SiriusXM High Band Satellite Reception in Vehicles","authors":"A. Nassar, S. Senega, S. Lindenmeier","doi":"10.23919/EUMC.2018.8541450","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541450","url":null,"abstract":"A new multi-channel algorithm for satellite digital audio radio services (SDARS) with scan-phase-antenna diversity at the SiriusXM high band is presented. Considering reception via four different satellite frequency bands simultaneously, the algorithm controls microwave phase shifters as well as switches of a diversity circuit in order to combine different antenna signals for a minimized overall bit error probability. On basis of a simple level detection, the in-phase and quadrature components are derived for all frequency bands and an overall bit error probability is estimated, which is minimized via the switching and phase constellation of the microwave diversity circuit. For the verification of the algorithm, antenna signals of a micro-diversity antenna set are received in real scenario test drives underneath dense foliage which are fed into a scan-phase diversity circuit. Even in unconventional antenna mounting positions the antenna diversity measurements with the novel multi-channel algorithm show a significant improvement of the reception quality in comparison to single antennas.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"95 1","pages":"312-315"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88955768","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 : 2018-09-01DOI: 10.23919/EUMC.2018.8541741
B. Tehrani, M. Tentzeris
This work outlines for the first time the development and demonstration of fully inkjet-printed mm-wave 3D ramp interconnects for Ka-band active wireless devices and MCM packaging solutions. Details of the inkjet printing processes are outlined to realize printed RF and DC interconnects for active MMIC dies. Printed ramp interconnects are demonstrated first with an attenuator die to evaluate the multi-material fabrication process, yielding an interconnect insertion loss of approximately 0.45 dB/mm at 24.5 GHz. The process is then applied to a Ka-band LNA MMIC where ramp interconnects for the RF and DC are inkjet-printed, yielding a maximum aggregate gain of 24.2 dB and interconnect insertion loss of approximately 0.57 dB/mm. The fabrication processes and evaluative demonstrations presented in this work highlight the effectiveness of utilizing fully-additive inkjet printing technology for the realization of highly application-specific wireless MCM systems in a low-cost and efficient fashion up to the mm-wave frequency range.
{"title":"Fully Inkjet-Printed Ramp Interconnects for Wireless Ka-Band MMIC Devices and Multi-Chip Module Packaging","authors":"B. Tehrani, M. Tentzeris","doi":"10.23919/EUMC.2018.8541741","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541741","url":null,"abstract":"This work outlines for the first time the development and demonstration of fully inkjet-printed mm-wave 3D ramp interconnects for Ka-band active wireless devices and MCM packaging solutions. Details of the inkjet printing processes are outlined to realize printed RF and DC interconnects for active MMIC dies. Printed ramp interconnects are demonstrated first with an attenuator die to evaluate the multi-material fabrication process, yielding an interconnect insertion loss of approximately 0.45 dB/mm at 24.5 GHz. The process is then applied to a Ka-band LNA MMIC where ramp interconnects for the RF and DC are inkjet-printed, yielding a maximum aggregate gain of 24.2 dB and interconnect insertion loss of approximately 0.57 dB/mm. The fabrication processes and evaluative demonstrations presented in this work highlight the effectiveness of utilizing fully-additive inkjet printing technology for the realization of highly application-specific wireless MCM systems in a low-cost and efficient fashion up to the mm-wave frequency range.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"6 1","pages":"1037-1040"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89036041","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 : 2018-09-01DOI: 10.23919/EUMC.2018.8541505
Yunfeng Dong, T. Johansen, V. Zhurbenko, P. J. Hanberg
This paper presents the design of a transition at D-band (110–170 GHz) between rectangular waveguide and coplanar waveguide (CPW) using wideband patch antenna. With the rectangular ring structure, the proposed patch antenna is specialized for high gain and large bandwidth which can be used for wireless chip-to-chip communication or implemented as a rectangular waveguide-to-CPW transition. A simulated gain of 7.4 dBi with 36% bandwidth centered at 140 GHz is achieved. The fabricated rectangular waveguide-to-CPW transition in a back-to-back configuration exhibits a bandwidth of 42.2 GHz at D-band. From 118.8 GHz to 161 GHz, the return loss is better than 10 dB and each fabricated rectangular waveguide-to-CPW transition introduces less than 2 dB insertion loss.
{"title":"A Rectangular Waveguide-to-Coplanar Waveguide Transition at D-band Using Wideband Patch Antenna","authors":"Yunfeng Dong, T. Johansen, V. Zhurbenko, P. J. Hanberg","doi":"10.23919/EUMC.2018.8541505","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541505","url":null,"abstract":"This paper presents the design of a transition at D-band (110–170 GHz) between rectangular waveguide and coplanar waveguide (CPW) using wideband patch antenna. With the rectangular ring structure, the proposed patch antenna is specialized for high gain and large bandwidth which can be used for wireless chip-to-chip communication or implemented as a rectangular waveguide-to-CPW transition. A simulated gain of 7.4 dBi with 36% bandwidth centered at 140 GHz is achieved. The fabricated rectangular waveguide-to-CPW transition in a back-to-back configuration exhibits a bandwidth of 42.2 GHz at D-band. From 118.8 GHz to 161 GHz, the return loss is better than 10 dB and each fabricated rectangular waveguide-to-CPW transition introduces less than 2 dB insertion loss.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"37 1","pages":"1045-1048"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89216185","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 : 2018-09-01DOI: 10.23919/EURAD.2018.8546659
K. Lomakin, D. Simon, M. Sippel, K. Helmreich, E. Seler, Z. Tong, Ralf Reuter, G. Gold
In this work, for the first time, a 3D printed slotted waveguide array antenna with 12 radiating elements and a differential feed design for W-band is presented. A gain of 12 dBi is achieved with a half power beam width of 6° and a side lobe level of 19 dB due to the optimized radiating slot elements position and geometry. The tilt angle remains within 2° in the frequency range from 75 GHz to 82 GHz and within only 1° from 77 GHz to 82 GHz respectively. A well known concept is applied to improve metal plating process and thus, allow for a complex differential feed structure.
{"title":"3D Printed Slotted Waveguide Array Antenna for Automotive Radar Applications in W- Band","authors":"K. Lomakin, D. Simon, M. Sippel, K. Helmreich, E. Seler, Z. Tong, Ralf Reuter, G. Gold","doi":"10.23919/EURAD.2018.8546659","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546659","url":null,"abstract":"In this work, for the first time, a 3D printed slotted waveguide array antenna with 12 radiating elements and a differential feed design for W-band is presented. A gain of 12 dBi is achieved with a half power beam width of 6° and a side lobe level of 19 dB due to the optimized radiating slot elements position and geometry. The tilt angle remains within 2° in the frequency range from 75 GHz to 82 GHz and within only 1° from 77 GHz to 82 GHz respectively. A well known concept is applied to improve metal plating process and thus, allow for a complex differential feed structure.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"23 1","pages":"1409-1412"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90186132","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 : 2018-09-01DOI: 10.23919/EUMC.2018.8541652
C. Chen, D. Tetsuda, Z. Zhang, T. Anada, S. Takeda, X. Wang, Z. Ma
A wideband bandpass filter (BPF) composed of two cascaded single-short-circuited-stub-loaded parallel-coupled-lines (SSCSL-PCLs) and two short-circuited shunt stubs at ports are theoretical investigated for the first time. The synthesis formulae of the BPF are derived based on the equi-ripple filtering function. As an example, a wideband BPF with a fractional bandwidth (FBW) of 33% is synthesized. The designed filter is then simulated, fabricated and measured. The good agreement validates the effectiveness of the newly proposed filter structure and the corresponding synthesis technique.
{"title":"Synthesis of Novel Wideband Filter Using Stub-Loaded Parallel-Coupled-Lines","authors":"C. Chen, D. Tetsuda, Z. Zhang, T. Anada, S. Takeda, X. Wang, Z. Ma","doi":"10.23919/EUMC.2018.8541652","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541652","url":null,"abstract":"A wideband bandpass filter (BPF) composed of two cascaded single-short-circuited-stub-loaded parallel-coupled-lines (SSCSL-PCLs) and two short-circuited shunt stubs at ports are theoretical investigated for the first time. The synthesis formulae of the BPF are derived based on the equi-ripple filtering function. As an example, a wideband BPF with a fractional bandwidth (FBW) of 33% is synthesized. The designed filter is then simulated, fabricated and measured. The good agreement validates the effectiveness of the newly proposed filter structure and the corresponding synthesis technique.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"1 1","pages":"372-375"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90245171","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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