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Extraction Algorithm for the Characteristics of the Microwave Connector with Correction Algorithm 基于校正算法的微波连接器特性提取算法
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.10000056
Yunsang Shin, Sangwook Nam
{"title":"Extraction Algorithm for the Characteristics of the Microwave Connector with Correction Algorithm","authors":"Yunsang Shin, Sangwook Nam","doi":"10.23919/apmc55665.2022.10000056","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.10000056","url":null,"abstract":"This paper introduces an algorithm that accurately extracts the characteristics of the microwave connector. The characteristics of the microwave connector can be extracted by measuring the thru 1 and thru 2 structure. The thru 1 structure is one in which two connector structures face each other. The thru 2 structure is one that has the known line which assumes that the characteristics are obtained by calculation. The characteristics of the connector structure were accurately extracted by applying T model of the thru 1 and thru 2 structures to the proposed algorithm in the 0.1-18 GHz range.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114540291","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}
引用次数: 0
Broadband Class-E Power Amplifier Design Employing a Double Reactance Compensation Matching Network 采用双抗补偿匹配网络的宽带e类功率放大器设计
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.9999947
Ziming Zhao, Xiaowei Zhu
{"title":"Broadband Class-E Power Amplifier Design Employing a Double Reactance Compensation Matching Network","authors":"Ziming Zhao, Xiaowei Zhu","doi":"10.23919/apmc55665.2022.9999947","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.9999947","url":null,"abstract":"In this paper, a double reactance compensation matching network is presented for designing a broadband Class-E power amplifier (CEPA). By theoretically analyzing the double reactance compensation principle and the condition satisfied Class-E operation mode, this double reactance compensation network is used to apply in the output circuits design of the CEPA, which can not only compensate the imaginary part of the optimal output impedance but also provide a constant load phase over wider bandwidth range. Hence, it indicates that the bandwidth of power amplifier can be enhanced on Class-E operation mode. It demonstrates a high-efficiency broadband CEPA is designed based on GaN CGH40010 devices. Experiment results show that drain efficiency of 63.4%-76.4% and output power of 39.6-42.5 dBm are obtained in 1.0-3.6 GHz. When driven a 100MHz five-carrier OFDM signal, the ACPR is measured better than -45.6 dBc with DPD.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114766656","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}
引用次数: 0
An Ultra-wideband Log Spiral Antenna with Back Cavity 带后腔的超宽带对数螺旋天线
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.9999940
X. Zong, Liping Zong, Jun Hu
{"title":"An Ultra-wideband Log Spiral Antenna with Back Cavity","authors":"X. Zong, Liping Zong, Jun Hu","doi":"10.23919/apmc55665.2022.9999940","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.9999940","url":null,"abstract":"For ultra-wideband direction finding applications, this paper presents a dual arm conical logarithmic spiral antenna design. The antenna is fed by gradient printed balun. In order to optimize the standing wave, beam width and circular polarization axis ratio, the back cavity design is adopted, and the absorbing materials are loaded on the inner wall of the cavity. Through comprehensive optimization, more than 10 times the frequency bandwidth is obtained. The rotary arm can be printed on the thin medium substrate by radium engraving plating process, and the measured results also verify the design very well.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114779331","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}
引用次数: 0
A 3.4-4.1GHz Broadband GaN Doherty Power Amplifier Module for 5G massive-MIMO Base-Stations 一种用于5G大规模mimo基站的3.4-4.1GHz宽带GaN多尔蒂功率放大器模块
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.9999926
Shuichi Sakata, Marie Taguchi, Katsuya Kato, Eri Teranishi, Satoru Honda, Y. Komatsuzaki, M. Tsuru, K. Yamanaka
{"title":"A 3.4-4.1GHz Broadband GaN Doherty Power Amplifier Module for 5G massive-MIMO Base-Stations","authors":"Shuichi Sakata, Marie Taguchi, Katsuya Kato, Eri Teranishi, Satoru Honda, Y. Komatsuzaki, M. Tsuru, K. Yamanaka","doi":"10.23919/apmc55665.2022.9999926","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.9999926","url":null,"abstract":"This paper presents a 3.4-4.1 GHz broadband two-stage GaN Doherty Power Amplifier (DPA) Module for 5G massive MIMO Base-Stations. In order to achieve high efficiency, broadband and compact DPA module in a multi-chip configuration, new design method to realize an impedance inverting network in DPA by Tee-type transmission line network with parasitic capacitance absorption even in the presence of series components between auxiliary power amplifier and combining node is proposed. The proposed method is applied to a compact two-stage GaN DPA module with effective area of 76mm2. Measurements showed that the DPA module achieved PAE of 42.0-44.6%, gain of 28.6-31.0dB and Pout of 40.3-40.8dBm over 700MHz for 3.4-4.1GHz with ACLR less than -47dBc under 20MHz modulation signal with PAPR of 7.5dB, after DPD. The proposed DPA module has the most wideband characteristic ever reported among DPAs in 3-4GHz band, demonstrating that the proposed design method is effective.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127701329","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}
引用次数: 1
Verification of Liquid Dielectric Property Measurement by a Two-Antenna Method at Frequencies over 4 GHz 4 GHz以上频率双天线法测量液体介电特性的验证
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.10000007
Y. Shimizu, N. Ishii, T. Nagaoka
{"title":"Verification of Liquid Dielectric Property Measurement by a Two-Antenna Method at Frequencies over 4 GHz","authors":"Y. Shimizu, N. Ishii, T. Nagaoka","doi":"10.23919/apmc55665.2022.10000007","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.10000007","url":null,"abstract":"Specific absorption rate (SAR) is used as a metric for the safety guidelines of human exposure. In a recent revision of the measurement standard for the compliance testing of wireless devices, the applicable frequency range of SAR was extended from 6 to 10 GHz. Thus, the applicable frequency range of the SAR probe calibration system should also be extended to the same frequency range as that of the revised standard. In this study, we propose a dielectric property measurement method using the propagation characteristics of two antennas in a liquid. This method is the first step of the extension of the SAR calibration system. To verify the applicability of the proposed method, the dielectric properties of pure water are measured in the frequency range from 4 to 10 GHz. The measured dielectric properties are compared with those obtained using a numerical formula for pure water. From the results, we show the applicability of the proposed method from 4 to 10 GHz.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126018519","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}
引用次数: 1
A 28 GHz Complementary QVCO Using Current Re-used and Parallel Coupling Technique 基于电流复用和并联耦合技术的28 GHz互补QVCO
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.9999925
Yu-Teng Chang, Chin-Chia Chang, Hsin-Chia Lu
{"title":"A 28 GHz Complementary QVCO Using Current Re-used and Parallel Coupling Technique","authors":"Yu-Teng Chang, Chin-Chia Chang, Hsin-Chia Lu","doi":"10.23919/apmc55665.2022.9999925","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.9999925","url":null,"abstract":"In this paper, we propose a complementary quadrature voltage-controlled oscillator ($boldsymbol{QVCO}$) at 28 GHz. This work combines the current re-used and parallel coupling technique in $boldsymbol{QVCO.}$ We also use the complementary device to implement the current re-used technique to save dc power. To avoid stacking structure, the quadrature-phase is achieved by the parallel coupling technique. The measured tuning range is 5.16 % and the measured lowest phase noise is -103.4 dBc/Hz at 1 MHz offset from carrier frequency at 28.36 GHz. The measured phase error is less than $pm 3^{circ}$ across all tuning frequencies. The core dc power consumption is only 21 mW for 1.8 V supply voltage. To our best knowledge, this $boldsymbol{QVCO}$ has the lowest phase error and an accurate quadrature phase.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121612734","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}
引用次数: 0
Low-Profile Liquid Metal Based Polarization Reconfigurable Antenna On an AMC Surface 基于液态金属的低轮廓偏振可重构天线在AMC表面
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.9999768
Yuwei Zhang, Shu Lin, Xingqi Zhang
{"title":"Low-Profile Liquid Metal Based Polarization Reconfigurable Antenna On an AMC Surface","authors":"Yuwei Zhang, Shu Lin, Xingqi Zhang","doi":"10.23919/apmc55665.2022.9999768","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.9999768","url":null,"abstract":"In this paper, a liquid metal based polarization reconfigurable antenna on an AMC surface is proposed. The main body of the antenna is a pair of crossed-dipoles with equal-length arms, and four polytetrafluoroethylene (PTFE) tubes filled with liquid metal columns of constant length are loaded on the surface of the arms. By moving the liquid metal columns, the equivalent length of the dipoles can be changed. Therefore, the self-phases of the two orthogonal dipoles can be adjusted, leading to the reconfigurable polarization. In order to obtain low-profile and unidirectional radiation properties, an AMC surface is used as a reflector.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"297 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115930828","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}
引用次数: 0
Fast Adjustment Scheme on Vector Regulator of Power Amplifier for Massive MIMO Base Stations 大规模MIMO基站功率放大器矢量调节器的快速调整方案
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.9999760
Kazuya Miyamoto, S. Narahashi, Yasunori Suzuki, H. Okazaki
{"title":"Fast Adjustment Scheme on Vector Regulator of Power Amplifier for Massive MIMO Base Stations","authors":"Kazuya Miyamoto, S. Narahashi, Yasunori Suzuki, H. Okazaki","doi":"10.23919/apmc55665.2022.9999760","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.9999760","url":null,"abstract":"This paper proposes a fast adjustment scheme on vector regulator of power amplifier (PA) for Massive MIMO base stations. The configuration of the PA corresponds to a signal cancellation circuit of feed-forward PA. The proposed scheme estimates the input power to the PA using kNN (k-Nearest Neighbor) method based on the experimental data and sets the gain and phase values of the vector regulator in accordance with the estimated input power. Experimental results using 3.5 GHz-band PA show that the proposed scheme adjusts the vector regulator approximately within 15 seconds to achieve the target suppression amount of over 30 dB.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131374704","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}
引用次数: 0
Ka-Band High-Gain Reflect-Array Metasurface Antenna Design for 1-U CubeSats 1-U立方体卫星ka波段高增益反射阵列超表面天线设计
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.9999870
Dauren Yedres, Kassen Dautov, G. Nauryzbayev, Mohammad S. Hashmi
{"title":"Ka-Band High-Gain Reflect-Array Metasurface Antenna Design for 1-U CubeSats","authors":"Dauren Yedres, Kassen Dautov, G. Nauryzbayev, Mohammad S. Hashmi","doi":"10.23919/apmc55665.2022.9999870","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.9999870","url":null,"abstract":"A high-gain reflect-array metasurface (MS) antenna applicable for emerging nano-satellites is presented in this paper. The designed MS antenna with an area of 96.39-by-96.39 sq. mm perfectly suits the 1-U CubeSats. It is worthwhile to mention that the proposed unit cell (UC) employed a polygonal-shaped patch whose key parameters were modified to obtain ten distinct phase responses. Then, a systematic positioning of UCs enabled the improvement of the antenna gain by focusing the main beam. Therefore, the MS antenna demonstrated a consistent high gain across a broad range of Ka-bands, with a peak value of 25.4 dBi at 28 GHz.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131919114","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}
引用次数: 0
8-pole Cul-de-Sac Dual-layer Microstrip Bandpass Filter 8极Cul-de-Sac双层微带带通滤波器
2022 Asia-Pacific Microwave Conference (APMC) Pub Date : 2022-11-29 DOI: 10.23919/apmc55665.2022.9999933
K. Yeo
{"title":"8-pole Cul-de-Sac Dual-layer Microstrip Bandpass Filter","authors":"K. Yeo","doi":"10.23919/apmc55665.2022.9999933","DOIUrl":"https://doi.org/10.23919/apmc55665.2022.9999933","url":null,"abstract":"This paper presents an 8-pole microstrip bandpass filter. A cul-de-sac coupling arrangement is employed in the design. The microstrip filter is achieved using a dual-layer structure with aperture couplings between the layers. The filter employed only one cross-coupling between resonators but exhibits 3 finite real frequency transmission zeros. A circuit model and its microstrip layout will be presented together with its circuit model and electromagnetic simulated results. A fabricate filter and its measured results will also be presented in this paper.","PeriodicalId":219307,"journal":{"name":"2022 Asia-Pacific Microwave Conference (APMC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133872850","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}
引用次数: 0
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