Progress in Electromagnetics Research C最新文献_第5页

Development of a Low Profile Wide-Bandwidth Circularly Polarized Microstrip Antenna for C-Band Airborne CP-SAR Sensor 用于C波段机载CP-SAR传感器的低剖面宽带圆极化微带天线的研制

Progress in Electromagnetics Research C Pub Date : 2018-02-06 DOI: 10.2528/PIERC17110901

C. E. Santosa, J. Sumantyo, K. Urata, M. Chua, K. Ito, S. Gao

{"title":"Development of a Low Profile Wide-Bandwidth Circularly Polarized Microstrip Antenna for C-Band Airborne CP-SAR Sensor","authors":"C. E. Santosa, J. Sumantyo, K. Urata, M. Chua, K. Ito, S. Gao","doi":"10.2528/PIERC17110901","DOIUrl":"https://doi.org/10.2528/PIERC17110901","url":null,"abstract":"In this paper, a low-profile wide bandwidth circularly polarized microstrip antenna is \u0000proposed as element for a C-band airborne circularly polarized synthetic aperture radar sensor. Several \u0000bandwidth improvement techniques were proposed and implemented. In order to increase impedance \u0000bandwidth, the antenna is constructed using double-stacked substrate with low dielectric constant, \u0000modified radiating shape for multi-resonant frequency, and a circle-slotted parasitic patch. Generation \u0000of the circularly polarized wave employs a simple square patch with curve corner-truncation as radiating \u0000element. The asymmetric position of the feeding is attempted to improve the axial-ratio bandwidth. \u0000To avoid a complicated feed network, the antenna is fed by single-feed proximity-coupled microstrip \u0000line. The effect of copper-covering on the upper layer for decrease undesired radiation wave emitted by \u0000the feeding is also studied and presented. Measurement results show that the impedance bandwidth \u0000and axial ratio bandwidth are 20.9% (1,100 MHz) and 4.7% (250 MHz), respectively. Meanwhile the \u0000measured gain is 7 dBic at the frequency of 5.3 GHz.","PeriodicalId":20699,"journal":{"name":"Progress in Electromagnetics Research C","volume":"81 1","pages":"77-88"},"PeriodicalIF":0.0,"publicationDate":"2018-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2528/PIERC17110901","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41401271","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: 18

Design and Performance Analysis of Millimetre-Wave Rotman Lens-Based Array Beamforming Networks for Large-Scale Antenna Subsystems 基于毫米波Rotman透镜的大型天线子系统阵列波束形成网络的设计与性能分析

Progress in Electromagnetics Research C Pub Date : 2017-10-11 DOI: 10.2528/PIERC17071703

A. Rahimian, Y. Alfadhl, A. Alomainy

引用次数: 6

A 2.45 GHz ISM Band CPW Rectenna for Low Power Levels 一种用于低功耗的2.45 GHz ISM波段CPW整流天线

Progress in Electromagnetics Research C Pub Date : 2017-08-27 DOI: 10.2528/PIERC17070401

J. Rivière, A. Douyère, S. Oree, A. Luk

{"title":"A 2.45 GHz ISM Band CPW Rectenna for Low Power Levels","authors":"J. Rivière, A. Douyère, S. Oree, A. Luk","doi":"10.2528/PIERC17070401","DOIUrl":"https://doi.org/10.2528/PIERC17070401","url":null,"abstract":"This paper presents the design and fabrication of a coplanar waveguide (CPW) rectenna using a sequential modular approach. The rectenna is printed on high permittivity, low-loss board ARLON AD1000 (r = 10.35 and tan δ = 0.0023 @ 10 GHz). The rectifier section is realized with a single reverse-biased schottky diode SMS-7630 in reverse topology for which a diode model is obtained at −20 dBm for frequencies F 0 = 2.45 GHz and 2F 0 = 4.9 GHz. The low-pass filter and the impedance matching are synthesized from passive CPW structures. Co-simulation technique is used to overcome CPW simulation limitations and to integrate the diode characteristics. The antenna consists of a circular slot loop antenna with stub matching such that its input impedance is close to 50 Ω. The goal of this work is to design a rectifier to simplify and speed up the fabrication process of a rectenna array. We reduced the number of processes to etch the rectifier on the board and minimized the number of lumped elements. At −20 dBm, simulation of the rectifier with an ideal impedance matching network shows rectification at 2.45 GHz with efficiency of 12.8%. The rectifier and rectenna show efficiency of approximately 10% at an operating frequency of 2.48 GHz.","PeriodicalId":20699,"journal":{"name":"Progress in Electromagnetics Research C","volume":"77 1","pages":"101-110"},"PeriodicalIF":0.0,"publicationDate":"2017-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2528/PIERC17070401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47337911","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: 8

Wideband Metamaterial Solar Cell Antenna for 5 GHz Wi-Fi Communication 用于5GHz Wi-Fi通信的宽带超材料太阳能电池天线

Progress in Electromagnetics Research C Pub Date : 2017-03-08 DOI: 10.2528/PIERC16110302

M. Elsdon, O. Yurduseven, X. Dai

引用次数: 19