{"title":"Cavity PCB Process-Based Ka-Band Phased Array With Offset-Fed Aperture Coupled Patch Antenna","authors":"Ju-Ik Oh, Hyunyoung Cho, Ji-Hoon Lee, Sanghyuck Han, Chanhee Lee, Jong-Won Yu","doi":"10.23919/EuMC54642.2022.9924420","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924420","url":null,"abstract":"This paper presents a cavity PCB process-based Ka-band phased array with offset-fed aperture coupled patch antenna. To reduce a wire bonding loss in the interconnection between the chip and PCB, the antenna is designed using a cavity-processed PCB, and the height of the cavity area is matched to the height of the chip to minimize the bonding length. In addition, the presented antenna is fed by aperture coupling which has advantages in process and utilization compared to via feeding. However, as the frequency increases, there is little space on the PCB, which makes the aperture coupling feeding not be applied normally. Therefore, in this paper, offset-fed aperture coupling is analyzed and experimentally verified. The presented antenna has a peak gain of about 16 dBi at 28 GHz and is capable of beam steering in a range of about ± 30 degrees.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134083300","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}
{"title":"A Transmission Method for Conductivity Extraction of Printed Silver Ink","authors":"Michael Ehrngruber, S. Neermann, G. Gold","doi":"10.23919/EuMC54642.2022.9924366","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924366","url":null,"abstract":"This paper presents a measurement method being capable of characterizing impact from sintering on reached electrical conductivity of nano silver inks. Therefore, a measurement setup at relatively low frequencies was chosen, so that the electromagnetic (EM) field completely penetrates the conductive region. Thus, the transmission which is highly influenced by the conductivity variations of the material under test can be measured. Even small variations due to different sintering temperatures are measurable in this way. A model describing the transmission of the EM-field through the material sample including a carrier layer of polyimide was set up, which allows for inferring the conductivity of the sample. As samples sputtered copper layers are examined, as well as nano silver inks sintered at different temperatures and with different sintering methods.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134527955","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}
{"title":"Design of a Dual-polarized SIW Cavity-backed Self-Quadruplexing antenna for mmWave 5G Applications","authors":"Amar D. Chaudhari, S. Mukherjee","doi":"10.23919/EuMC54642.2022.9924338","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924338","url":null,"abstract":"Design of a dual-polarized substrate integrated waveguide (SIW) based cavity-backed self-quadruplexing antenna is presented in this paper for fifth-generation (5G) millimetre-wave (mmWave) applications. In the proposed antenna, the metal plate at the top of the square SIW cavity is perturbed into eight rectangular patches of four different lengths each. The patches are designed/arranged to radiate into vertical and horizontal polarizations at 24.25, 26.5, 27.5, and 29.5 GHz simultaneously. With the proper placement of patches, isolation of more than 20 dB is obtained among the ports. The proposed antenna exhibits peak gains of 4.45, 4.28, 3.7, and 3.84 dBi at the above resonant frequencies. It has unidirectional radiation patterns with cross-polarization and front-to-back ratios better than 18 dB and 10 dB in all the bands. Moreover, the individual frequency-tuning capability of the antenna shows that it can be tuned to any of the mmWave 5G NR bands: n257, n258, n261 recommended by the U.S. Federal Communications Commission for 5G applications.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131033775","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}
P. Mishra, M. Singh, Aditi Sharma, K. V. Srivastava, Saptarshi Ghosh
{"title":"A Dual-Band Millimeter Wave SRR Loaded Printed Monopole with Annular Slot MIMO Antenna for 5G Applications","authors":"P. Mishra, M. Singh, Aditi Sharma, K. V. Srivastava, Saptarshi Ghosh","doi":"10.23919/EuMC54642.2022.9924461","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924461","url":null,"abstract":"This paper presents a two element dual-band multiple input multiple output (MIMO) antenna for millimeter-wave (mm-wave) applications at 28 and 38 GHz frequency bands. The proposed design consists of a printed monopole antenna with a split ring resonator (SRR) geometry in the top layer and an annular slot in the defected ground plane. A single antenna element along with the connector model has initially been designed with a detailed analysis and subsequently, the two-port MIMO antenna with connectors has been realized. By precisely optimizing the design parameters, the geometry exhibits broadside radiation performance at 28 GHz and 38 GHz. A considerable gain and wide impedance characteristics are also observed in both bands for both the antennas. Several MIMO parameters, such as envelope correlation coefficient, total active radiation coefficient, and channel capacity loss are also calculated, and the results are suitable for 5G mobile applications. Finally, both the antenna prototypes are fabricated and their results are in close agreement with the simulated responses, validating the proposed concepts","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132940643","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}
M. Babay, M. Moretto, P. Perrault, R. Bara-Maillet, P. McIllree, E. Froger, P. Di Prisco, P. Lopez
{"title":"Sub-THz Radio Communication Links From Research to Field Trial","authors":"M. Babay, M. Moretto, P. Perrault, R. Bara-Maillet, P. McIllree, E. Froger, P. Di Prisco, P. Lopez","doi":"10.23919/EuMC54642.2022.9924270","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924270","url":null,"abstract":"This paper presents the technological challenges and the potential application scenarios of high-capacity radio communication links operating in the sub-THz frequency band. A field trial of a dual carrier and dual polarisation transceiver demonstrator operating at D-band from 130 GHz up to 170 GHz is presented. Results show that the module supports TX constellations up to 128-QAM with 2 GHz channel spacing. An unconventional architecture, enabling a flexible frequency division duplex (f-FDD) and in band full duplex (FD) approaches, based on two separated antennas to transmit and receive, is here nronosed and validated.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133362873","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}
Joseph Masini, R. Shahbaz, F. Deshours, G. Alquié, Chaïmae El bastami, H. Kokabi
{"title":"Penetration Depth in Multilayered Biological Tissues using a Compact Microwave Biosensor","authors":"Joseph Masini, R. Shahbaz, F. Deshours, G. Alquié, Chaïmae El bastami, H. Kokabi","doi":"10.23919/EuMC54642.2022.9924283","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924283","url":null,"abstract":"The goal of this research is to investigate microwaves penetration depth through polymorphic biological tissues. This study aims to improve an existing sensor based on a Complementary Split Ring Resonator (CSRR) structure, designed to differentiate carotid artery atherosclerotic plaques. Multilayered animal tissues (skin, fat, muscle) are studied to characterize and simulate the neck composition, where the carotid plaque is localized.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133510366","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}
J. Walk, M. Maderboeck, G. Saxl, M. Ferdik, Moritz Fischer, Thomas Ussmueller
{"title":"A Multicarrier Communication Method to Increase Radio Coverage for UHF RFID","authors":"J. Walk, M. Maderboeck, G. Saxl, M. Ferdik, Moritz Fischer, Thomas Ussmueller","doi":"10.23919/EuMC54642.2022.9924390","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924390","url":null,"abstract":"The method introduced in this paper shows a multicarrier communication to increase coverage in a multipath environment for UHF RFID systems. A characterization of the combined radio channel in ideal (absorber chamber) and in real measurement environment with multipath propagation is presented. Positive effects of different transmit frequencies as well as coverage improvement in real measurement environments are shown. Predictions are made about spatially given dead points and their compensation is described. Furthermore, the shown approach helps to overcome them by significantly improving the transponder coverage with a multicarrier system. The use of a multicarrier transmission leads to a coverage of almost 70%, while the coverage of the single frequencies is below 40%. The geometrically defined rules used for the calculation of the interference pattern agree with a deviation of max. 2 dBm with the measurements.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131282320","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}
T. Braun, Jan Schöpfel, Aldo J. Marquez M, N. Pohl
{"title":"Achieving a Relative Bandwidth of 176% with a Single PLL at up to 12.5 GHz","authors":"T. Braun, Jan Schöpfel, Aldo J. Marquez M, N. Pohl","doi":"10.23919/EuMC54642.2022.9924377","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924377","url":null,"abstract":"This work presents a PLL architecture to achieve a relative bandwidth of >100% with a single PLL. To showcase the approach, a PLL generating frequencies inside the UWB is shown. The PLL utilizes the tuning range of two VCOs, while a single loop filter architecture generates both tuning voltages. To reduce implementation effort, the architecture can be simulated as a single, equivalent VCO. This equivalent VCO itself offers the maximum relative bandwidth of 200%. Additionally, it offers a more linear tuning curve than a single VCO. The maximum frequency of the PLL is 12.5 GHz, while its minimum frequency and hence relative bandwidth is only limited by the minimum divider value and reference frequency of the commercially available PLL.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131691519","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}
Jasmin Gabsteiger, C. Beck, M. Dietz, R. Weigel, F. Lurz
{"title":"Circular Gysel Divider for the Frequency Range from 18 GHz to 26 GHz","authors":"Jasmin Gabsteiger, C. Beck, M. Dietz, R. Weigel, F. Lurz","doi":"10.23919/EuMC54642.2022.9924309","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924309","url":null,"abstract":"Power dividers are required and used in a wide variety of applications. It is often sufficient to halve the power and divide it evenly between two branches. However, if one branch requires more power than the other, a divider with an unequal power ratio is needed. In the presented work, an equal and an unequal Gysel divider were designed, simulated and measured. Compared to other Gysel splitters, the ones demonstrated here have advantages in size, isolation and losses.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131906306","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}
{"title":"High Gain Omnidirectional Array Antenna Using SIW Technology","authors":"Ahmad Emadeddin, S. Shad, B. Jonsson","doi":"10.23919/EuMC54642.2022.9924478","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924478","url":null,"abstract":"In this paper, a novel omnidirectional array antenna based on Substrate Integrated Waveguide (SIW) technology is proposed. The proposed antenna is realized by removing some vias on one side of the narrow wall of a conventional SIW which results a slot antenna. The gain of an antenna with 8 slots is 9.5 dBi with a gain variation of 2 dB over 360°. Besides, the antenna polarization is horizontal with the cross-polarization level of less than −40 dB in comparison with the co-polarization level. The bandwidth of 80 MHz at 6.66 GHz is achieved with the antenna's dimension of 300×22.86×1.575 mm3. The measurement results of the antenna have a good agreement with the full-wave simulation results. The proposed antenna is well suited for 6 GHz wireless access applications due to the low cost, low complexity, simple integration, and high gain.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133762199","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}