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2020 IEEE MTT-S International Wireless Symposium (IWS)最新文献

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Comparison of Frequency Diverse Array Patterns with Nonuniform Frequency Offset 非均匀频偏情况下多频阵列方向图的比较
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/iws49314.2020.9360153
L. Zhang, W. Xu, Pingping Huang, W. Tan
{"title":"Comparison of Frequency Diverse Array Patterns with Nonuniform Frequency Offset","authors":"L. Zhang, W. Xu, Pingping Huang, W. Tan","doi":"10.1109/iws49314.2020.9360153","DOIUrl":"https://doi.org/10.1109/iws49314.2020.9360153","url":null,"abstract":"Frequency Diverse Array (FDA) radar is a new type of radar technology proposed in recent years. It generates a range-dependent beampattern through a small frequency increment among the antenna elements, which overcomes the weakness of phased-array in this respect, so it has many potential applications. However, in a traditional frequency diverse array with a fixed frequency offset, the transmit beampattern has coupling range and angle response. In order to decouple the range-angle beampattern response, a frequency diverse array with a nonuniform frequency offset is proposed. In this letter, three types of FDA with non-uniform frequency offset are described, and their performance is compared through numerical analysis, such as low side-lobe.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128902451","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 Novel Beam Scanning Antenna Based on Liquid Crystal 一种新型液晶波束扫描天线
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360015
Jun Shu, Ziyang Zheng, Yueping Zhang
{"title":"A Novel Beam Scanning Antenna Based on Liquid Crystal","authors":"Jun Shu, Ziyang Zheng, Yueping Zhang","doi":"10.1109/IWS49314.2020.9360015","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360015","url":null,"abstract":"A novel beam scanning antenna based on liquid crystal is proposed. It is a conventional liquid crystal microstrip patch antenna with a row of shorting pins in the middle of E-plane. Owing to the introduction of shorting pins, this antenna can work at even mode and odd mode within the frequency band. The resonant frequency of even mode is lower than that of odd mode. Therefore, through choosing liquid crystal as its substrate, this antenna can alter its operation modes by varying the permittivity of liquid crystal. More importantly, beam scanning can be achieved since the radiation patterns of two modes are divergent. By using characteristic mode analysis method, an antenna model at Ka-band has been investigated. The simulation results show that the main beam can scan from -10 to broadside continuously at 28 GHz in E-plane.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131901989","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
Research on improving CATR system design in test area 试验区CATR系统设计改进研究
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360198
L. Zhigang, Chen Dong
{"title":"Research on improving CATR system design in test area","authors":"L. Zhigang, Chen Dong","doi":"10.1109/IWS49314.2020.9360198","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360198","url":null,"abstract":"The CATR (Compact antenna test range) system is mounted on a five-axis test bench and space is severely limited. The CATR reflector also has a limited mirror diameter and focal length. In order to improve the test area of constricted field, the influence of feed size and other factors on the performance of space-constrained CATR system was studied. The results showed that the low-frequency performance of the test range of constricted field antenna could be improved by reasonable design of feed size and reasonable selection of reflector cone edge. Research show that the method is effective and can be implemented to improve the retrenchment test area.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115910711","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 Compact Planar Conical Beam Array Antenna 一种紧凑的平面锥形波束阵列天线
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9359951
Kaixin Wu, S. Liao, W. Che, Q. Xue
{"title":"A Compact Planar Conical Beam Array Antenna","authors":"Kaixin Wu, S. Liao, W. Che, Q. Xue","doi":"10.1109/IWS49314.2020.9359951","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9359951","url":null,"abstract":"A novel compact planar conical beam antenna with high gain, low side lobe level (SLL), enhanced bandwidth, and stable beam pointing angle within the working bandwidth is proposed. With a low profile of 0.11 λ0, it consists of a multiport radiator formed by three annular radiation elements and a feeding network. To facilitate the multiport array radiator design, a method to quickly get its overall reflection coefficient is developed, and an element-level pattern diversity (ELPD) technique is applied in the design. The proposed antenna with a feeding network has achieved an impedance bandwidth of 13.2% (4.67 ~ 5.33 GHz), a peak gain of 14.1 dBi, and a SLL of -21 dB at the center frequency of 5 GHz.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114513501","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 W-Band Balanced Power Amplifier in 0.1-μm GaAs PHEMT Process 一种0.1 μm GaAs PHEMT工艺的w波段平衡功率放大器
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9359958
Fang Zhu, G. Luo
{"title":"A W-Band Balanced Power Amplifier in 0.1-μm GaAs PHEMT Process","authors":"Fang Zhu, G. Luo","doi":"10.1109/IWS49314.2020.9359958","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9359958","url":null,"abstract":"In this paper, a compact W-band four-stage power amplifier MMIC in a commercially available 0.l-μm GaAs PHEMT process is presented. By utilizing balanced structure with on-chip Lange couplers, the presented power amplifier exhibits an average small-signal gain of 15 dB and an average saturated output power of 21.5 dBm (141 mW) from 84 to 100 GHz. A peak saturated output power of 22.3 dBm (170 mW) is achieved at an operating frequency of 88 GHz with a total gate periphery of 0.4 mm at the output stage, resulting in a power density of 425 mW/ mm. The input and output return losses are better than 10 dB across the full W-band. The chip size is 1.78 x 1.15 mm2including all pads.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117327618","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: 2
A 3D printed dual-band antenna using liquid metal for wearable bracelets communications 使用液态金属的3D打印双频天线，用于可穿戴手镯通信
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360116
Jianchi Zhou, Jian Dong, Meng Wang, Heng-Guang Luo
{"title":"A 3D printed dual-band antenna using liquid metal for wearable bracelets communications","authors":"Jianchi Zhou, Jian Dong, Meng Wang, Heng-Guang Luo","doi":"10.1109/IWS49314.2020.9360116","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360116","url":null,"abstract":"A 3D printed dual-band antenna using liquid metal (LM) as the conductor is presented for wearable bracelet wireless communications in this paper. The hollow antenna substrate is printed conformal to wrist using stereolithography technology. LM is infused into the microfluidic channels within the substrate as the radiating dipole arms. This conformal antenna generates two bands at 2.4 GHz and 5.3 GHz for body area communications. Effect of changing the bracelet thickness on the antenna radiation efficiency is investigated.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116283200","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
Current-Reused 6:1 Injection-Locked Frequency Divider 电流复用6:1注入锁定分频器
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360085
W. Lai, S. Jang, Po-Ming Shih, Ho‐Chang Lee, M. Juang
{"title":"Current-Reused 6:1 Injection-Locked Frequency Divider","authors":"W. Lai, S. Jang, Po-Ming Shih, Ho‐Chang Lee, M. Juang","doi":"10.1109/IWS49314.2020.9360085","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360085","url":null,"abstract":"This letter proposes a CMOS divide-by-6 injection-locked frequency divider (ILFD) with a divide-by-2 current-mode logic (CML) stacked on a capacitive cross-coupled oscillator used as an LC divide-by-3 ILFD. The divide-by-6 ILFD in the TSMC 0.18 μm 1P6M CMOS process has a measured locking range 1.7 GHz from 8.4 GHz to 10.1 GHz at the power consumption of 10.6 mW. The divide-by-6 ILFD uses the CML FD with wide locking range to track the input frequency from the LC sub-ILFD output, and occupies a die area of $1.2times 1.2$ mm2. The LC sub-ILFD uses a dual-resonance resonator with two resonant frequencies, which can be used to extend the locking range.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124042671","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
An X-band Internally Matched GaN Power Amplifier with 705W Peak Power and 51.7% PAE 一种峰值功率为705W、PAE为51.7%的x波段内匹配GaN功率放大器
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/iws49314.2020.9360158
L. Gu, W. Feng, Sutong Zhou, Shijun Tang, Tao Chen, W. Che, Shuai Wang
{"title":"An X-band Internally Matched GaN Power Amplifier with 705W Peak Power and 51.7% PAE","authors":"L. Gu, W. Feng, Sutong Zhou, Shijun Tang, Tao Chen, W. Che, Shuai Wang","doi":"10.1109/iws49314.2020.9360158","DOIUrl":"https://doi.org/10.1109/iws49314.2020.9360158","url":null,"abstract":"One high power and high efficiency fully internally-matched GaN power amplifier operating at X band is presented. The device is realized by matching four GaN HEMT dies of 4*18-mm gate periphery. To reduce the size, single layer capacitors with high permittivity are used, and the impedance matching circuits are fabricated on AI2O3ceramic substrate. Within the frequency band of 8.2-8.8 GHz, the saturated output power, power gain and PAE of the device were measured as more than 660 W, 9.8 dB and 44.5% based on the pulse mode of 100 μs pulse width and 10% duty. Furthermore, the highest output power and PAE can reach to 705 W and 51.7% respectively. Due to the compact size of the package, 26mm x 17.4mm, the results show the highest output power at this frequency among the reported literatures.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"527 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124496418","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: 3
A Planar Differential Dual Helix Antenna for 5G Millimeter-Wave Applications 5G毫米波应用的平面差分双螺旋天线
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360154
Ju Yang, G. Jin, Yechun Xu, S. Liao
{"title":"A Planar Differential Dual Helix Antenna for 5G Millimeter-Wave Applications","authors":"Ju Yang, G. Jin, Yechun Xu, S. Liao","doi":"10.1109/IWS49314.2020.9360154","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360154","url":null,"abstract":"A new planar differential helix antenna for 5G milli-meter-wave applications is proposed in this paper. The proposed antenna has a simple rotational symmetrical planar structure fed by strip line, which is printed on one substrate. The width of the helix are gradually increasing to improve the RHCP gain. A step ground is used to obtain a better impedance matching. Furthermore, to enhance the vertical polarization and thus improve CP gain, parasitic unit directors formed by metallized via-holes and printed stripes, are introduced. The simulated results show that the −10-dB impedance bandwidth ranges from 24GHz to 30.9GHz (24.6%), and the 3-dB axial ratio bandwidth is from 23.8GHz to 29.1GHz (20%). The proposed antenna features simple structure, low cost and good performance, thus it has a good application prospect in 5G millimeter-wave applications.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125758093","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: 3
Design and Implementation of Signal Processor Based on Passive Radar Seeker 基于被动雷达导引头的信号处理器设计与实现
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/iws49314.2020.9360191
Dalong Xu, Xiucai Wan, Hongya Wang, Liming Tang, F. Feng, Min Gu
{"title":"Design and Implementation of Signal Processor Based on Passive Radar Seeker","authors":"Dalong Xu, Xiucai Wan, Hongya Wang, Liming Tang, F. Feng, Min Gu","doi":"10.1109/iws49314.2020.9360191","DOIUrl":"https://doi.org/10.1109/iws49314.2020.9360191","url":null,"abstract":"The reception and processing of radar signals is a research hotspot of modern electronic countermeasure technology. In this paper, we introduce a radar signal processing system based on a passive radar seeker, with a transient signal processing bandwidth of 400MHz. The whole system adopts a modular design, and the feasibility of each module is verified on the signal processing board, thereby verifying the reliability and stability of the system.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125080731","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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