Results 301 to 310 of about 2,253,897 (339)

A Lens-Coupled On-Chip Antenna for Dual-Polarization SiGe HBT THz Direct Detector

IEEE Antennas and Wireless Propagation Letters, 2019
In this letter, a silicon lens-coupled dual-polarization on-chip ring antenna for THz direct detection in 0.13 $\mu$m SiGe heterojunction bipolar transistor (HBT) technology is presented.
J. Grzyb, M. Andree, R. Jain, B. Heinemann, U. Pfeiffer   +4 more
semanticscholar   +1 more source

Wideband Dual-Polarized Patch Antenna

2006 10th IEEE Singapore International Conference on Communication Systems, 2006
Dual-polarized L-probe patch antennas afford wide impedance bandwidth and increased channel capacity. However, due to the close proximity, the coupling between the two input ports remains an important problem. In this paper, we introduce the use of a novel 180deg broadband microstrip balun which delivers both balanced power splitting and consistent ...
Kah-wee Khoo, Yong-xin Guo, Ling-chuen Ong   +2 more
openaire   +1 more source

Design and Implementation of SIW Cavity-Backed Dual-Polarization Antenna Array With Dual High-Order Modes

IEEE Transactions on Antennas and Propagation, 2019
In this communication, a novel approach for high-order modes excitation using substrate-integrated waveguide (SIW) is proposed for the implementation of a dual-polarization cavity-backed slot antenna.
Wenxun Li, Xiaohong Tang, Yang Yang
semanticscholar   +1 more source

Dual-polarized flat array antenna

IEEE Antennas and Propagation Society International Symposium. 1995 Digest, 2002
In Europe, satellite broadcasting services such as ASTRA are getting more popular. The services currently use 4-types of communication satellites with 516 channels. It is necessary for large number of channels reception that the antenna has a wide frequency band-width (10.7 GHz to 11.7 GHz) on both vertical and horizontal polarization with high ...
K. Tsukamoto, T. Saitou, H. Arai
openaire   +1 more source

Dual-polarized dielectric resonator antennas

IEEE Transactions on Antennas and Propagation, 2003
Two high input-isolation dual-polarized dielectric resonator (DR) antennas are presented in this communication. First, a slot-coupled feed technique with two narrow slots forming a "T" configuration is employed to design a dual-polarized DR antenna. Input isolation exceeding 35 dB has been obtained in the band for this design.
null Yong-Xin Guo, null Kwai-Man Luk
openaire   +1 more source

Terahertz Dual-Polarization Beam Splitter Via an Anisotropic Matrix Metasurface

IEEE Transactions on Terahertz Science and Technology, 2019
A metasurface composed of multiple resonator arrangements with a certain phase distribution is capable of efficient wavefront manipulation. An anisotropic matrix metasurface consisting of asymmetric metal cross particles with a near-field coupling ...
Hongxin Zeng, Yaxin Zhang, F. Lan, S. Liang, Lan Wang, Tianyang Song, Ting Zhang, Zongjun Shi, Ziqiang Yang, Xue-liang Kang, Xilin Zhang, P. Mazumder, D. Mittleman   +12 more
semanticscholar   +1 more source

Dual polarization crank line antennas

IEEE Antennas and Propagation Society International Symposium 1997. Digest, 2002
When a crank line (CL) antenna is excited from its left and right input ports, it radiates right- and left-hand circular polarization (CP) wave beams, respectively. Each beam direction is determined by the radiation cell dimensions. For the use of a dual CP wave element, the directions of the two beams must be the same.
H. Nakano, R. Suzuki, M. Yamazaki, H. Mimaki, J. Yamauchi   +4 more
openaire   +1 more source

Dual-Polarized Metagrating Absorbers

2023 XXXVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2023
Tan, Zhen, Yi, Jianjia, Ratni, Badreddine, Burokur, Shah Nawaz   +3 more
openaire   +1 more source

Dual-polarization two-dimensional valley photonic crystals

Science China Physics Mechanics and Astronomy, 2022
Xin‐Tao He, Jianwei Liu, Fulong Shi, K. Shen, Wen-Jie Chen, Xiaodong Chen, Jianwen Dong   +6 more
semanticscholar   +1 more source

Dual Polarity Gravity (FINAL)

FINAL Version (LaTeX PDF) The Dual-Polarity Gravity (DPG) framework introduces a coherent physical ontology for gravity by treating it as a conserved two-phase field: Attractive Gravity (AG), bound to mass, and Repellent Gravity (RG), the pervasive substrate that fills spacetime.
openaire   +1 more source