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2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)最新文献

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Design of dual-polarized differential feed dielectric resonator antenna 双极化差分馈电介质谐振器天线的设计
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7325014
Ruying Sun, Rongcang Han
{"title":"Design of dual-polarized differential feed dielectric resonator antenna","authors":"Ruying Sun, Rongcang Han","doi":"10.1109/IMWS-AMP.2015.7325014","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7325014","url":null,"abstract":"A cylindrical dual-polarizaed (DP) dielectric resonator antenna (DRA) is presented. The DP DRA excited by differential balanced probes which have the same magnitude and 180° phase difference. It is demonstrated that the balanced probes feed is an effective method for low cross-polarization antenna design. This banlanced fed DP antenna delivers good performance in terms of polarization purity and port isolation and indicating a low cross-polarization level of -34 dB and the worst isolation of 47 dB in the whole operating band. The DP antenna shows impedance bandwidth of 500 MHz (8.83%) centered at the frequency of 6.0 GHz for the return loss no more than -10 dB. Additionally, the symmetric radiation patterns for two ports are achieved in the broadside direction due to the symmetric balanced feeding mechanism.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"53 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77259274","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
High power S-band GaN-based power amplifier for radar systems 雷达系统高功率s波段氮化镓功率放大器
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324922
Yuting Yang, Mi Zhang, W. Che, Haidong Chen, Qi Cai
{"title":"High power S-band GaN-based power amplifier for radar systems","authors":"Yuting Yang, Mi Zhang, W. Che, Haidong Chen, Qi Cai","doi":"10.1109/IMWS-AMP.2015.7324922","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324922","url":null,"abstract":"One S-band high-power GaN-based power amplifier (PA) is investigated. The design of the multi-stage PA and the biasing circuit are investigated seperately, including the two stages of power amplifiers which delivers about 50dBm of saturated output power in class AB from 2.7 to 2.9 GHz and the bias control channel which provides special bias and power sequencing for GaN HEMTs. Overall circuits operating at S band are designed, fabricated and measured.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"18 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79924777","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
3D printing millimeter-wave lens with scanning beams 带有扫描光束的3D打印毫米波透镜
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324983
H. Yi, S. Qu, X. Bai, K. Ng, C. Chan
{"title":"3D printing millimeter-wave lens with scanning beams","authors":"H. Yi, S. Qu, X. Bai, K. Ng, C. Chan","doi":"10.1109/IMWS-AMP.2015.7324983","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324983","url":null,"abstract":"High-gain beam-scanning antennas are very important in millimeter-wave (MMW) and terahertz (THz) applications. Dielectric lens is a good candidate for this purpose because it has no metal or feeding loss. In this work, a discrete dielectric lens with an antireflection layer is studied. A new method is proposed to realize beam-scanning properties in MMW region. The design concept is applicable to other frequency ranges as well. Three-dimensional (3D) printing technology is employed to simplify the manufacturing process, and to reduce the fabrication cost. Experimental results in MMW regions verified the concept of lens design.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"24 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80179212","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: 4
Miniaturized bandpass filter with high frequency selectivity and wide upper stpoband 具有高频率选择性和宽上阻带的小型化带通滤波器
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7325023
K. Song, Qi Duan, Maoyu Fan, Y. Zhu, Yong Fan
{"title":"Miniaturized bandpass filter with high frequency selectivity and wide upper stpoband","authors":"K. Song, Qi Duan, Maoyu Fan, Y. Zhu, Yong Fan","doi":"10.1109/IMWS-AMP.2015.7325023","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7325023","url":null,"abstract":"A miniaturized bandpass filter (BPF) with high frequency selectivity and wide upper stopband is presented. The presented bandpass filter is constructed by using the capacitance loaded square meander loop resonator. Due to capacitive load, the resonator can exhibit slow-wave characteristics, which can be utilized to reduce size and suppress harmonics. The two degenerate-mode resonances are used to form the passband while two transmission zeroes are generated on each side of the passband so as to obtain high frequency selectivity. The circuit area of bandpass filter is only 0.14λg×0.14λg, where λg is the guided wavelength at the center frequency. The measured results reach good agreement with simulated results.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"71 12 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80005544","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 planar Luneburg lens composed of artificial impedance surfaces 由人工阻抗面组成的宽带平面吕尼堡透镜
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324989
Hao Yu, Xumin Ding, Kuang Zhang, Yu-Ming Wu, Qun Wu
{"title":"Broadband planar Luneburg lens composed of artificial impedance surfaces","authors":"Hao Yu, Xumin Ding, Kuang Zhang, Yu-Ming Wu, Qun Wu","doi":"10.1109/IMWS-AMP.2015.7324989","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324989","url":null,"abstract":"A two-dimensional Luneburg lens is presented based on artificial impendence surfaces (AIS). The desired refractive index profile is controlled by the variable surface impendence, which obtained by using an array of complementary unipolar compact photonic band gap (UC-PBG) structure inside a parallel plate waveguide. Simulation results have shown that proposed Luneburg lens, which operating in TM mode during X-band, has an excellent focusing ability. The proposed Luneburg lens can be used in direction of arrival (DOA) estimation. The estimation error is smaller than 5°.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"24 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88738981","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
Simplified superscatterers with homogeneous and isotropic anti-vacuum materials 具有均匀和各向同性反真空材料的简化超散射体
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324999
Tiancheng Han, C. Qiu
{"title":"Simplified superscatterers with homogeneous and isotropic anti-vacuum materials","authors":"Tiancheng Han, C. Qiu","doi":"10.1109/IMWS-AMP.2015.7324999","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324999","url":null,"abstract":"We propose an easily realizable method for superscatterer by using anti-vacuum material, namely er= μr=-1, which simplifies the constitutive parameters to the utmost extent. Based on the enabling theoretical tool of linear transformation optics, we first design a general rectangular superscatterer with negative-index material, which is homogeneous but anisotropic. To simplify the complex parameters, an advanced scheme is proposed by operating folded transformation along only one coordinate axis. Finally, homogeneous and isotropic superscatterer is achieved only using two anti-vacuum blocks. Results validate and illustrate these functionalities, which make the superscatterer much easier in fabrication and application owing to its simplicity in parameters.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"69 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87364477","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
The design and implementation of a compact NMR system 一个紧凑的核磁共振系统的设计和实现
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7325038
Jiasheng Su, S. Huang
{"title":"The design and implementation of a compact NMR system","authors":"Jiasheng Su, S. Huang","doi":"10.1109/IMWS-AMP.2015.7325038","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7325038","url":null,"abstract":"This paper presents our recently development of a compact nuclear magnetic resonance (NMR) system, including radiofrequency (RF) acquisition system and the coil design. For the acquisition system, a time-saving and cost-effective method is introduced for the development. In this system, circuit components are simplified by using the high-performance FPGA. This reduces the complexity and improves the performance. Our design will be presented and demonstrated using a Carr-Purcell-Meiboom-Gill (CPMG) echo train pulse sequence for NMR. It will be compared to traditional acquisition systems in terms of size and signal to noise ratio (SNR).","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"382 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76613384","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
Near-field characteristics of focused transmitarray antennas 聚焦发射阵列天线的近场特性
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324939
P. Nayeri, A. Elsherbeni, R. Haupt, Fan Yang
{"title":"Near-field characteristics of focused transmitarray antennas","authors":"P. Nayeri, A. Elsherbeni, R. Haupt, Fan Yang","doi":"10.1109/IMWS-AMP.2015.7324939","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324939","url":null,"abstract":"Near-field focusing characteristics of transmitarray antennas are investigated. The design procedure is summarized and a Ku-band focused transmitarray antenna is presented where the elements are aperture-coupled patches interconnected with stripline delays. The focusing performance of the transmitarray is compared with classic far-field designs. It is shown that a near-field focused reflectarray can be a good candidate for applications requiring high microwave power.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"36 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77179326","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
Tunable and flexible electronics employing monolithically-integrated BST thin film 采用单片集成BST薄膜的可调谐和柔性电子器件
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324953
K. Karnati, Ya Shen, Weijie Zhu, Michael E. Trampler, S. Ebadi, P. Wahid, X. Gong
{"title":"Tunable and flexible electronics employing monolithically-integrated BST thin film","authors":"K. Karnati, Ya Shen, Weijie Zhu, Michael E. Trampler, S. Ebadi, P. Wahid, X. Gong","doi":"10.1109/IMWS-AMP.2015.7324953","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324953","url":null,"abstract":"In this report, the ongoing research at University of Central Florida on the realization of tunable and flexible electronics using Barium Strontium Titante (BST) is discussed. Using novel design and fabrication technologies, a reconfigurable reflectarray based on BST-integrated capacitively-loaded patch elements operating at Ka band is shown. In addition, our current research on BST-based ring-loaded patch elements and flexible phase shifters are discussed. By monolithically integrating BST on flexible substrates, low-loss microwave systems with small real estate and low deployment costs can be realized. The presented designs find applications in both cellular communications such as 5G and deep-space applications.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"30 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81008282","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 novel phase shifting surface-integrated horn antenna 一种新型移相表面集成喇叭天线
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324898
Xiaoping Xiong, Yanhui Liu, Zhihui Yao, L. Zhang, Weiwen Li, Q. Liu
{"title":"A novel phase shifting surface-integrated horn antenna","authors":"Xiaoping Xiong, Yanhui Liu, Zhihui Yao, L. Zhang, Weiwen Li, Q. Liu","doi":"10.1109/IMWS-AMP.2015.7324898","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324898","url":null,"abstract":"We present the design of a phase shifting surface-integrated horn antenna (PSSIHA) which consists of the horn antenna and planar array lens. Planar array lens just needs one type of antenna-filter-antenna element and is applied to obtain a relatively uniform phase distribution on the aperture of the horn antenna. The PSSIHA prototype has been fabricated. Measured results match with simulated ones well. The PSSIHA achieves a higher gain and a better directivity than the horn without the lens.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"14 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84942653","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
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