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Parul DAWAR, N. S. RAGHAVA, Asok DE
Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11, Pages 1883-1891 doi: 10.1631/FITEE.1601193
Keywords: Ultra-wideband (UWB) Antenna Metamaterial
A novel wideband ring antenna for polarization/pattern diversity Correspondence
Li SUN, Shigang ZHOU, Guanxi ZHANG, Baohua SUN
Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 6, Pages 975-983 doi: 10.1631/FITEE.2100421
We present a novel wideband ring antenna for polarization/pattern diversity. The proposed antenna consists of eight printed dipole elements in the form of a circular array. The arms of adjacent elements overlap for capacitive loading. Unlike traditional circular arrays, a method of exciting elements in the form of every two intervals is first introduced. We prove that this method can maintain the wideband characteristics of the antenna. Four independent feeding ports in a ring antenna aperture are designed for the polarization/pattern diversity with suitable feeding networks. As an example, a wideband dual-polarized antenna was designed based on the proposed ring antenna. To achieve two orthogonal linear polarizations with maximum radiation in the direction, two adjacent elements are extracted periodically to feed through one port. The differential feeding network and integrated Baluns have been designed to realize broadside radiation patterns, considering impedance and phase matching. Because the proposed antenna is hollow, it is a good candidate for a multiband sharing aperture antenna element. Results show that the proposed antenna has an overlapped bandwidth of 50.5% (1.04–1.82 GHz) with voltage standing wave ratio (VSWR)<2 for the two polarizations, and port isolation less than 23 dB. The measured realized gain ranges from 6.1 to 8.1 dBi, with stable broadside radiation patterns over the operating frequency band.
Keywords: 环形天线;宽带天线;极化分集;方向图分集
Aeronautical Mobile Communication: The Evolution from Narrowband to Broadband
Jun Zhang
Engineering 2021, Volume 7, Issue 4, Pages 431-434 doi: 10.1016/j.eng.2021.02.002
Forward link outage performance of aeronautical broadband satellite communications Research Articles
Huaicong Kong, Min Lin, Shiwen He, Xiaoyu Liu, Jian Ouyang, Weiping Zhu,linmin@njupt.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 6, Pages 790-801 doi: 10.1631/FITEE.2000445
Keywords: 航空宽带卫星网络;自由空间光传输;高通量毫米波通信;中断概率;相位误差
A Thermo-Tunable Metamaterial as an Actively Controlled Broadband Absorber Article
Xiao-Chang Xing, Yang Cao, Xiao-Yong Tian, Lingling Wu
Engineering 2023, Volume 20, Issue 1, Pages 143-152 doi: 10.1016/j.eng.2022.04.028
Metamaterials have attracted increasing attention in recent years due to their powerful abilities in manipulating electromagnetic (EM) waves. However, most previously reported metamaterials are unable to actively control full-band EM waves. In this paper, we propose a thermo-tunable broadband metamaterial (T-TBM) using paraffin-based composites (PD-Cs) with different phase transition temperatures. Active control of the T-TBM reflection loss peaks from low to high frequency is realized by manipulating the solid–liquid state of the PD-Cs at different phase transition temperatures. The absorption peak bandwidth (where the reflection loss value is less than −30 dB) can be changed, while the broad bandwidth absorption (where the reflection loss value is less than −10 dB) is satisfied by adjusting the temperature of the T-TBM. It is shown that the stagnation of the phase transition temperature of the PD-Cs in the T-TBM provides a time window for actively controlling the EM wave absorption response under different thermal conditions. The device has a broad application prospect in the fields of EM absorption, intelligent metamaterials, multifunctional structural devices, and more.
Keywords: Metamaterials Active control Thermally tunable Broadband absorption
Transmission performance analysisof IR- UWB system in multipath environment
Lin Di,Sha Xuejun ,Wu Xuanli ,Zhang Naitong
Strategic Study of CAE 2009, Volume 11, Issue 2, Pages 75-81
To analyze the time- hopping (TH) impulse radio Ultra- Wideband (UWB) transmission performance in the presence of multipath, a model for Bit Error Rate (BER) analysis of UWB systems with coherent demodulation in the presence of inter- symbol interference, intra- symbol multipath interference , and multiple access interference is proposed by studying the statistics of multipath channel models, which is defined by the IEEE 802.15.3a Task Group, and then through calculating the variance of intra- symbol interference, inter- symbol interference and multiuser interference, system BER formulation is obtained and verified in comparison with computer simulations. By analyzing the average multipath interval and comparing BERs with and without intra- symbol interference , the results show that intra- symbol interference should not be neglected. Finally, to satisfy BER requirement, in various channel environments, the maximum transmission data rate is analyzed by both considering and neglecting intra- symbol interference in single user system, and the maximum average transmission data rate is analyzed corresponding to different user numbers in multi- user system .
Keywords: Ultra- Wideband intra- symbol multipath interference inter- symbol interference multi- userinterference transmission performance analysis model
Consideration on Developing Mobile Satellite Communication
Zhang Naitong,Zhang Zhongzhao,Chu Haibin,Liu Huijie
Strategic Study of CAE 2002, Volume 4, Issue 10, Pages 11-16
Three kinds of international constellation communication system are introduced in this paper, and the constitution, configuration, function, and existing problems of some representative systems are analyzed. The paper discusses the development and trend of the satellite communication system, and then some viewpoints on developing mobile satellite communication system are put forward.
Keywords: mobile satellite communication constellation communication system broad band service
Dispersion-engineered wideband low-profile metasurface antennas Review Articles
Wei E. I. LIU, Zhi Ning CHEN, Xianming QING
Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1, Pages 27-38 doi: 10.1631/FITEE.1900473
Keywords: Metasurface antenna Dispersion engineering Composite right/left-handed (CRLH) Guided wave Surface wave Wideband Low profile
Wideband and high-gain BeiDou antenna with a sequential feed network for satellite tracking Research Article
Zhuolin DENG, Zhongyu TIAN, Chenhe DUAN, Pei XIAO, Zhu LIU, Gaosheng LI,Gaosheng7070@vip.163.com
Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 10, Pages 1471-1481 doi: 10.1631/FITEE.2200244
Keywords: BeiDou antenna Wideband circularly polarized radiation Four-port sequential feed network Global navigation satellite system (GNSS) receiver Satellite tracking
Wideband circular-polarized transmitarray for generating a high-purity vortex beam Correspondence
Liangjie QIU, Xiuping LI, Zihang QI, Wenyu ZHAO, Yuhan HUANG,xpli@bupt.edu.cn
Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 6, Pages 927-934 doi: 10.1631/FITEE.2200539
Keywords: 轨道角动量;涡旋波束;透射阵;宽带;高纯度
A 17–26.5 GHz 42.5 dBm broadband and highly efficient gallium nitride power amplifier design Correspondences
Ming LI, Zhiqun LI, Quan ZHENG, Lanfeng LIN, Hongqi TAO,liming_2018@seu.edu.cn,zhiqunli@seu.edu.cn
Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2, Pages 346-350 doi: 10.1631/FITEE.2000513
Keywords: K波段;高效率;宽带;氮化镓(GaN);功率放大器
Wideband cryogenic amplifier for a superconducting nanowire single-photon detector Research Article
Lianming Li, Long He, Xu Wu, Xiaokang Niu, Chao Wan, Lin Kang, Xiaoqing Jia, Labao Zhang, Qingyuan Zhao, Xuecou Tu,Lianming.LI@seu.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12, Pages 1551-1684 doi: 10.1631/FITEE.2100525
Keywords: 超低温放大器;宽带放大器;超导纳米线单光子探测器
Analysis and design of transformer-based CMOS ultra-wideband millimeter-wave circuits for wireless applications: a review Review Articles
Yi-ming YU, Kai KANG
Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1, Pages 97-115 doi: 10.1631/FITEE.1900491
Keywords: CMOS Millimeter-wave (mm-Wave) Ultra-wideband Transformer Low-noise amplifier Injection-locked fre-quency tripler Injection-locked frequency divider Mixer
A compact ultra-wideband crossed-dipole antenna for 2G/3G/4G/IMT/5G customer premise equipment applications Correspondences
Jingli GUO, Lun CUI, Ying LIU, Baohua SUN, Xiaofeng LI,guojl@xidian.edu.cn,ID_CLXX@163.com
Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2, Pages 339-345 doi: 10.1631/FITEE.2000456
Keywords: 5G;交叉振子;双极化天线;终端天线;超宽带
Performance enhancement for antipodal Vivaldi antenna modulated by a high-permittivity metasurface lens Research Article
Shaopeng Pan, Mingtuan Lin, Lin Qi, Pan Chen, Yang Feng, Gaosheng Li,Gaosheng7070@vip.163.com
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12, Pages 1551-1684 doi: 10.1631/FITEE.2100139
Keywords: 对跖Vivaldi天线;超宽带;高介电常数;双极化;超表面透镜
Title Author Date Type Operation
Miniaturized UWB multi-resonance patch antenna loaded with novel modified H-shape SRR metamaterial for microspacecraft applications
Parul DAWAR, N. S. RAGHAVA, Asok DE
Journal Article
A novel wideband ring antenna for polarization/pattern diversity
Li SUN, Shigang ZHOU, Guanxi ZHANG, Baohua SUN
Journal Article
Aeronautical Mobile Communication: The Evolution from Narrowband to Broadband
Jun Zhang
Journal Article
Forward link outage performance of aeronautical broadband satellite communications
Huaicong Kong, Min Lin, Shiwen He, Xiaoyu Liu, Jian Ouyang, Weiping Zhu,linmin@njupt.edu.cn
Journal Article
A Thermo-Tunable Metamaterial as an Actively Controlled Broadband Absorber
Xiao-Chang Xing, Yang Cao, Xiao-Yong Tian, Lingling Wu
Journal Article
Transmission performance analysisof IR- UWB system in multipath environment
Lin Di,Sha Xuejun ,Wu Xuanli ,Zhang Naitong
Journal Article
Consideration on Developing Mobile Satellite Communication
Zhang Naitong,Zhang Zhongzhao,Chu Haibin,Liu Huijie
Journal Article
Dispersion-engineered wideband low-profile metasurface antennas
Wei E. I. LIU, Zhi Ning CHEN, Xianming QING
Journal Article
Wideband and high-gain BeiDou antenna with a sequential feed network for satellite tracking
Zhuolin DENG, Zhongyu TIAN, Chenhe DUAN, Pei XIAO, Zhu LIU, Gaosheng LI,Gaosheng7070@vip.163.com
Journal Article
Wideband circular-polarized transmitarray for generating a high-purity vortex beam
Liangjie QIU, Xiuping LI, Zihang QI, Wenyu ZHAO, Yuhan HUANG,xpli@bupt.edu.cn
Journal Article
A 17–26.5 GHz 42.5 dBm broadband and highly efficient gallium nitride power amplifier design
Ming LI, Zhiqun LI, Quan ZHENG, Lanfeng LIN, Hongqi TAO,liming_2018@seu.edu.cn,zhiqunli@seu.edu.cn
Journal Article
Wideband cryogenic amplifier for a superconducting nanowire single-photon detector
Lianming Li, Long He, Xu Wu, Xiaokang Niu, Chao Wan, Lin Kang, Xiaoqing Jia, Labao Zhang, Qingyuan Zhao, Xuecou Tu,Lianming.LI@seu.edu.cn
Journal Article
Analysis and design of transformer-based CMOS ultra-wideband millimeter-wave circuits for wireless applications: a review
Yi-ming YU, Kai KANG
Journal Article
A compact ultra-wideband crossed-dipole antenna for 2G/3G/4G/IMT/5G customer premise equipment applications
Jingli GUO, Lun CUI, Ying LIU, Baohua SUN, Xiaofeng LI,guojl@xidian.edu.cn,ID_CLXX@163.com
Journal Article