Pub Date : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124907
T. Bader, K. Lomakin, G. Gold
In this paper, a novel additively manufactured broadband end-launch wavemode transducer for WR-10 waveguide to microstrip line (MSL) is presented. Furthermore, a diode power-detector featuring this transition for the entire W-band (75 to 110 GHz) is introduced. This transition incorporates a cos2-shaped septum from the waveguide broad wall down to the MSL on the printed circuit board (PCB). To characterize the propagation properties of the transitions, the S-parameters of a back-to-back measurement setup are determined, achieving a return loss of less than −10 dB over the entire W-band and a maximum insertion loss of −9 dB for a MSL-line length of 50 mm. The detector, utilizing this transducer, exhibits a high linearity and a square-law behaviour to signal powers smaller than −10 dBm. Measurements suggest promising performance for applications in the field of measurement and demodulation, especially when multiple detectors are needed, e.g. in six-port assemblies.
{"title":"Ultra Wideband Power Detector for W-Band Applications Using a Novel Additively Manufactured Wave Mode Transducer","authors":"T. Bader, K. Lomakin, G. Gold","doi":"10.1109/WAMICON57636.2023.10124907","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124907","url":null,"abstract":"In this paper, a novel additively manufactured broadband end-launch wavemode transducer for WR-10 waveguide to microstrip line (MSL) is presented. Furthermore, a diode power-detector featuring this transition for the entire W-band (75 to 110 GHz) is introduced. This transition incorporates a cos2-shaped septum from the waveguide broad wall down to the MSL on the printed circuit board (PCB). To characterize the propagation properties of the transitions, the S-parameters of a back-to-back measurement setup are determined, achieving a return loss of less than −10 dB over the entire W-band and a maximum insertion loss of −9 dB for a MSL-line length of 50 mm. The detector, utilizing this transducer, exhibits a high linearity and a square-law behaviour to signal powers smaller than −10 dBm. Measurements suggest promising performance for applications in the field of measurement and demodulation, especially when multiple detectors are needed, e.g. in six-port assemblies.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127182540","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124885
Francis E. Parsche
A new form of the axial mode helix antenna has been developed: The Archimedean Screw Antenna. It provides more gain for length than does the wire helix and it does so with 3 dB gain bandwidths approaching 1.7 to 1, a 50-ohm feed point with DC grounding, and it eliminates the need for insulators. It is the screen compliment to the skeletal wire helix antenna. Several methods of fabrication are shown.
{"title":"A New Axial Mode Helix Antenna: The Archimedean Screw Antenna","authors":"Francis E. Parsche","doi":"10.1109/WAMICON57636.2023.10124885","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124885","url":null,"abstract":"A new form of the axial mode helix antenna has been developed: The Archimedean Screw Antenna. It provides more gain for length than does the wire helix and it does so with 3 dB gain bandwidths approaching 1.7 to 1, a 50-ohm feed point with DC grounding, and it eliminates the need for insulators. It is the screen compliment to the skeletal wire helix antenna. Several methods of fabrication are shown.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123736648","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124912
Christian Dorn, Andreas Depold, Thomas Kurin, F. Lurz, Amelie Hagelauer
Mobile phone localization of buried victims in quick response search-and-rescue (SAR) operations require control over the radio network. To gain control via emergency fallback procedures, jamming the valid base stations in range is necessary. This publication introduces the concept and realization of a LTE jamming system, that can mask specific base stations by jamming the cell-specific reference signal. The selected jamming method allows low-power operation of the jammer for portable use.
{"title":"Low-Power Smart Selective LTE Jammer for Search and Rescue Applications using Software-Defined Radio","authors":"Christian Dorn, Andreas Depold, Thomas Kurin, F. Lurz, Amelie Hagelauer","doi":"10.1109/WAMICON57636.2023.10124912","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124912","url":null,"abstract":"Mobile phone localization of buried victims in quick response search-and-rescue (SAR) operations require control over the radio network. To gain control via emergency fallback procedures, jamming the valid base stations in range is necessary. This publication introduces the concept and realization of a LTE jamming system, that can mask specific base stations by jamming the cell-specific reference signal. The selected jamming method allows low-power operation of the jammer for portable use.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121599609","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124906
Jotham Kasule, A. Akyurtlu, C. Armiento
Microwave connectors with a planar geometry have been demonstrated using additive manufacturing techniques. This planar form factor is expected to enable connectors to be integrated directly with other components onto a printed circuit board. The connectors were developed with multiple signal lines that will increase the density of signal connections to PCBs, eliminating the physical constraints of single-signal COTS microwave connectors. This work developed electromagnetic models (using Ansys HFSS) of these planar connectors to predict performance and optimize connector design. Materials and printing processes were developed to fabricate the connectors based on high-temperature PEEK thermoplastics. The multiple signal connectors were designed to operate over the 1–6GHz band and are built upon the single signal printed planar geometry connector introduced in a previous paper [1].
{"title":"Printed, Planar Microwave Connector with Multiple Signal Lines","authors":"Jotham Kasule, A. Akyurtlu, C. Armiento","doi":"10.1109/WAMICON57636.2023.10124906","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124906","url":null,"abstract":"Microwave connectors with a planar geometry have been demonstrated using additive manufacturing techniques. This planar form factor is expected to enable connectors to be integrated directly with other components onto a printed circuit board. The connectors were developed with multiple signal lines that will increase the density of signal connections to PCBs, eliminating the physical constraints of single-signal COTS microwave connectors. This work developed electromagnetic models (using Ansys HFSS) of these planar connectors to predict performance and optimize connector design. Materials and printing processes were developed to fabricate the connectors based on high-temperature PEEK thermoplastics. The multiple signal connectors were designed to operate over the 1–6GHz band and are built upon the single signal printed planar geometry connector introduced in a previous paper [1].","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124851050","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124900
Niteesh Bharadwaj Vangipurapu, Kenle Chen
This paper presents the first-ever high-power magnetic-less simultaneous transmit and receive (STAR) front end based on quadrature-balanced power amplifier (QB-PA). It is originally discovered that the harmonic-tuning and high output reflection of high-power GaN PA can be synergistically co-designed for achieving high TX efficiency and low receive (RX) path loss of the front end. Based on this methodology, a QB-PA-based STAR front end is practically designed using commercial GaN transistors as a proof-of-concept demonstration. The developed prototype experimentally achieves up to 80% PA efficiency at peak transmission power of 42.5 dBm and meanwhile very low receive loss of ≈1.5 dB. Moreover, STAR operation is experimentally conducted using both continuous and modulated TX stimulus at 1.6 GHz, in which a satisfactory reception performance is measured at 1.66 GHz with a very low RX EVM. This design radically outperforms the state-of-the-art by order of magnitude in TX power, together with significantly enhanced PA efficiency and antenna-interface efficiency.
{"title":"Magnetic-Less Simultaneous Transmit and Receive Front End using Highly Efficient GaN-Based Quadrature Balanced Amplifier","authors":"Niteesh Bharadwaj Vangipurapu, Kenle Chen","doi":"10.1109/WAMICON57636.2023.10124900","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124900","url":null,"abstract":"This paper presents the first-ever high-power magnetic-less simultaneous transmit and receive (STAR) front end based on quadrature-balanced power amplifier (QB-PA). It is originally discovered that the harmonic-tuning and high output reflection of high-power GaN PA can be synergistically co-designed for achieving high TX efficiency and low receive (RX) path loss of the front end. Based on this methodology, a QB-PA-based STAR front end is practically designed using commercial GaN transistors as a proof-of-concept demonstration. The developed prototype experimentally achieves up to 80% PA efficiency at peak transmission power of 42.5 dBm and meanwhile very low receive loss of ≈1.5 dB. Moreover, STAR operation is experimentally conducted using both continuous and modulated TX stimulus at 1.6 GHz, in which a satisfactory reception performance is measured at 1.66 GHz with a very low RX EVM. This design radically outperforms the state-of-the-art by order of magnitude in TX power, together with significantly enhanced PA efficiency and antenna-interface efficiency.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117027540","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124923
Hanxiang Zhang, R. Bahr, B. Arigong
A novel 3D printed X-band tunable phase shifter is presented in this paper. By using the low temperature (140 °C) additively manufactured (AM) method, a multilayer conductive structure within a single dielectric substrate is realized by simultaneously jetting both dielectric and conductive inks. Taking advantage of this inkjet printing technology, a tunable phase shifter operating at X - band is proposed and designed. Within 90° continuous phase tuning range, a low insertion loss variation can be achieved with very compact size 0.22 × 0.12 × 0.1 (λg3). To verify proposed design concept, a prototype parallel strip line tunable phase shifter working at 9 GHz is designed, fabricated, and measured, where the measurement results agree well with EM simulations and design theory.
{"title":"3D-Printed Low-Profile X-Band Tunable Phase Shifter","authors":"Hanxiang Zhang, R. Bahr, B. Arigong","doi":"10.1109/WAMICON57636.2023.10124923","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124923","url":null,"abstract":"A novel 3D printed X-band tunable phase shifter is presented in this paper. By using the low temperature (140 °C) additively manufactured (AM) method, a multilayer conductive structure within a single dielectric substrate is realized by simultaneously jetting both dielectric and conductive inks. Taking advantage of this inkjet printing technology, a tunable phase shifter operating at X - band is proposed and designed. Within 90° continuous phase tuning range, a low insertion loss variation can be achieved with very compact size 0.22 × 0.12 × 0.1 (λg3). To verify proposed design concept, a prototype parallel strip line tunable phase shifter working at 9 GHz is designed, fabricated, and measured, where the measurement results agree well with EM simulations and design theory.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"357 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122160536","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124892
Insang Yoo, David R. Smith
We present a method for computing the input impedance of a rectangular waveguide-backed metasurface array excited by a common feed network. The metasurface array consists of rectangular waveguides loaded with subwavelength metamaterial radiators fed by the guided modes, excited with the feed. Thus, computation of the impedance at the input feed requires considering the electromagnetic interaction of the metasurfaces with its feed. Recently, semi-analytical models of metasurfaces using a coupled dipole framework have been proposed as efficient analysis tools. However, the models assume ideal waveguide ports for excitation and do not incorporate the response of feed networks, thus creating a gap in analyzing the overall response of the antenna. This paper addresses this gap by presenting a method using the coupled dipole framework and segmentation technique, which utilizes the impedance matrices for cascading multiport networks representing the metasurfaces and feed. The proposed method is verified via full-wave simulations.
{"title":"Computation of Input Impedance of Rectangular Waveguide-backed Metasurface Arrays with Feed Networks using Coupled Dipole Framework","authors":"Insang Yoo, David R. Smith","doi":"10.1109/WAMICON57636.2023.10124892","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124892","url":null,"abstract":"We present a method for computing the input impedance of a rectangular waveguide-backed metasurface array excited by a common feed network. The metasurface array consists of rectangular waveguides loaded with subwavelength metamaterial radiators fed by the guided modes, excited with the feed. Thus, computation of the impedance at the input feed requires considering the electromagnetic interaction of the metasurfaces with its feed. Recently, semi-analytical models of metasurfaces using a coupled dipole framework have been proposed as efficient analysis tools. However, the models assume ideal waveguide ports for excitation and do not incorporate the response of feed networks, thus creating a gap in analyzing the overall response of the antenna. This paper addresses this gap by presenting a method using the coupled dipole framework and segmentation technique, which utilizes the impedance matrices for cascading multiport networks representing the metasurfaces and feed. The proposed method is verified via full-wave simulations.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115602764","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124884
Fredo Chavez, S. Khandelwal
A fast and accurate deep learning (DL) based ASM-HEMT high frequency (HF) model parameter extraction is presented for the first time. The parameter extraction starts with creating a nominal model by extracting ASM-HEMT I–V parameters. The nominal model is used for Monte Carlo simulation of preselected ASM-HEMT HF parameters to generate 90K training data, with a total of 796 million S-parameter data points from a frequency sweep of 14 different bias conditions. The DL model is then trained to instantly predict ASM-HEMT HF parameters from the S-parameter data. The results show that the proposed approach can provide accurate model results, obtaining an error lesser than 10%. The presented approach shows a fast and accurate means for HF parameter extraction with an accuracy typically achieved in manual parameter extraction.
{"title":"Deep Learning-Based ASM-HEMT High Frequency Parameter Extraction","authors":"Fredo Chavez, S. Khandelwal","doi":"10.1109/WAMICON57636.2023.10124884","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124884","url":null,"abstract":"A fast and accurate deep learning (DL) based ASM-HEMT high frequency (HF) model parameter extraction is presented for the first time. The parameter extraction starts with creating a nominal model by extracting ASM-HEMT I–V parameters. The nominal model is used for Monte Carlo simulation of preselected ASM-HEMT HF parameters to generate 90K training data, with a total of 796 million S-parameter data points from a frequency sweep of 14 different bias conditions. The DL model is then trained to instantly predict ASM-HEMT HF parameters from the S-parameter data. The results show that the proposed approach can provide accurate model results, obtaining an error lesser than 10%. The presented approach shows a fast and accurate means for HF parameter extraction with an accuracy typically achieved in manual parameter extraction.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128922801","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124887
Timothy M. Graziano, Zachary C. Wolsborn, Sebastien B. Wilkinson, Samuel J. Della-Santina, Kirk A. Ingold
In modern conflicts, Electronic Warfare (EW) and signal sensing technology is becoming increasingly important to maneuver commanders in multi-domain operations. One of the challenges in integrating EW, electronic support, and direction finding into combined arms operations is the ability to simulate threat emitters, such as enemy tactical Very High Frequency (VHF) radios, in a manner that allows for integrating with live fire operations. Current simulators or commercial radios are cost prohibitive and not made for one-time use. Use of commercial radios often requires close proximity of operation. A low cost and consumable RF Threat emitter design is presented as a solution to train direction finding and electronic support in a sensor to shooter environment. An interface between a single board processor and Software Defined Radio (SDR) is developed. Battery, amplifier, and user interface is considered. Frequency Hopping, raw IQ, audio file playback, and other modulation schemes are achievable with SDR flexibility. The overall threat emitter system is tested in line of sight (LOS) environment. Received signal power is compared to multiple path loss and radio wave propagation models. The system performance and overall build cost are evaluated and shown to successfully emulate desired radio transmissions in the VHF band.
{"title":"A Low-Cost Consumable Radio Frequency Emitter for Adversary Threat Emulation","authors":"Timothy M. Graziano, Zachary C. Wolsborn, Sebastien B. Wilkinson, Samuel J. Della-Santina, Kirk A. Ingold","doi":"10.1109/WAMICON57636.2023.10124887","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124887","url":null,"abstract":"In modern conflicts, Electronic Warfare (EW) and signal sensing technology is becoming increasingly important to maneuver commanders in multi-domain operations. One of the challenges in integrating EW, electronic support, and direction finding into combined arms operations is the ability to simulate threat emitters, such as enemy tactical Very High Frequency (VHF) radios, in a manner that allows for integrating with live fire operations. Current simulators or commercial radios are cost prohibitive and not made for one-time use. Use of commercial radios often requires close proximity of operation. A low cost and consumable RF Threat emitter design is presented as a solution to train direction finding and electronic support in a sensor to shooter environment. An interface between a single board processor and Software Defined Radio (SDR) is developed. Battery, amplifier, and user interface is considered. Frequency Hopping, raw IQ, audio file playback, and other modulation schemes are achievable with SDR flexibility. The overall threat emitter system is tested in line of sight (LOS) environment. Received signal power is compared to multiple path loss and radio wave propagation models. The system performance and overall build cost are evaluated and shown to successfully emulate desired radio transmissions in the VHF band.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121702798","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 : 2023-04-17DOI: 10.1109/WAMICON57636.2023.10124888
Florian Probst, Andre Engelmann, M. Koch, R. Weigel
This work proposes an integrated baseband signal generator with multiple orthogonal outputs for phase-modulated continuous-wave (PMCW) radar. The circuit combines a linear-feedback shift register (LFSR), producing an m-sequence at a chip rate of 15 Gb/s, with a digitally implemented outer code (OC) generator. Different channels can be distinguished at the receiver through a slow-time modulation of the pseudo-random binary sequence (PRBS) with different Hadamard codes. The generator is integrated into a 1700 × 1300μm2 double-channel D-band radar transmitter on a 22nm fully-depleted silicon on insulator (FDSOI) technology, of which only 73 × 80μm2 are devoted to the baseband generator. A measurement setup is presented, where the transmitter’s D-band output signal is externally down-converted and sampled using a high-speed oscilloscope. In a series of offline digital signal processing (DSP) steps including correlation, accumulation and another correlation, the functionality of the proposed generator is demonstrated.
{"title":"A Dual-Channel 15 Gb/s PRBS Generator for a D-Band PMCW Radar Transmitter in 22 nm FDSOI","authors":"Florian Probst, Andre Engelmann, M. Koch, R. Weigel","doi":"10.1109/WAMICON57636.2023.10124888","DOIUrl":"https://doi.org/10.1109/WAMICON57636.2023.10124888","url":null,"abstract":"This work proposes an integrated baseband signal generator with multiple orthogonal outputs for phase-modulated continuous-wave (PMCW) radar. The circuit combines a linear-feedback shift register (LFSR), producing an m-sequence at a chip rate of 15 Gb/s, with a digitally implemented outer code (OC) generator. Different channels can be distinguished at the receiver through a slow-time modulation of the pseudo-random binary sequence (PRBS) with different Hadamard codes. The generator is integrated into a 1700 × 1300μm2 double-channel D-band radar transmitter on a 22nm fully-depleted silicon on insulator (FDSOI) technology, of which only 73 × 80μm2 are devoted to the baseband generator. A measurement setup is presented, where the transmitter’s D-band output signal is externally down-converted and sampled using a high-speed oscilloscope. In a series of offline digital signal processing (DSP) steps including correlation, accumulation and another correlation, the functionality of the proposed generator is demonstrated.","PeriodicalId":270624,"journal":{"name":"2023 IEEE Wireless and Microwave Technology Conference (WAMICON)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126805585","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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