Results 21 to 30 of about 313,766 (176)

A Multibeam Dual-Band Orthogonal Linearly Polarized Antenna Array for Satellite Communication on the Move

International Journal of Antennas and Propagation, 2015
The design and simulation of a 10 × 8 multibeam dual-band orthogonal linearly polarized antenna array operating at Ku-band are presented for transmit-receive applications.
Yi Liu, Hu Yang, Shaojun Mao, Jiang Zhu
doaj   +1 more source

Multibeam antenna using cavity‐based waveguide structure with extended hemispherical lens at millimetre wave

Electronics Letters, 2021
A multibeam antenna with a single input port using a cavity‐based waveguide structure is implemented. The proposed structure uses a cylindrical cavity and a higher‐order TM21 mode is excited in it. The higher‐order mode is to divide the incoming power in
Shakti Singh Chauhan, Harikesh Dalal, Mahesh P. Abegaonkar, Ananjan Basu   +3 more
doaj   +1 more source

On the analysis of switched-beam antennas for the W-CDMA downlink [PDF]

, 2004
Smart antennas are widely recognized as an enabling technology for addressing the demand of future wireless network capacity when employed in place of traditional fixed-coverage sector antennas.
Beach, Mark, Allen, Ben, Allen, BH, Beach, M, Beach, MA, Allen, B   +5 more
core   +1 more source

DS-CDMA microcellular networks with adaptive antennas [PDF]

, 1996
This paper considers the performance of a DS-CDMA system which employs adaptive antenna technology at the basestation site of a microcell. Results for a typical microcellular environment produced with the help of a ray tracing tool highlight the ...
Tsoulos, G, Beach, MA
core   +1 more source

Millimeter-Wave Multibeam Antenna Based on Folded C-Type SIW

, 2021
© 1963-2012 IEEE. A millimeter-wave (mm-wave) multibeam array antenna based on folded C-type substrate integrated waveguide (FCSIW) is presented for the first time.
Liu, Y, Sun, Q, Ban, YL, Lian, JW, Nie, Z   +4 more
core   +1 more source

Multi-Beam Patch Antenna Based On Metasurface

IEEE Access, 2020
In this paper, a multi-beam antenna based on metasurface is proposed. By employing the metasurface as radiating element, steering the beam in the elevation plane is realized.
Jianan Zhang, Liping Han, Xinwei Chen, Rongcao Yang, Wenmei Zhang   +4 more
doaj   +1 more source

3D-Printed All-Metal Terahertz Multibeam Lens Antenna Based on Photonic Crystal

IEEE Access, 2023
This paper presents a realization of a D- band multibeam lens antenna based on 3D printing. It extends all-metal Luneburg lens to terahertz band for the first time, and demonstrates the application potential of 3D-printed antenna in the associated ...
Weihua Yu, Xinyue Wang, Hongda Lu, Hao Liu, Cheng Jin   +4 more
doaj   +1 more source

Concept of 3D Antenna Array for Sub-GHz Rotator-Less Small Satellite Ground Stations and Advanced IoT Gateways

Telecom
Phased antenna arrays have revolutionized modern wireless systems by enabling dynamic beamforming, multibeam synthesis, and user tracking to enhance data rates and reduce interferences, yet their reliance on expensive active components (e.g., phase ...
Maryam Jahanbakhshi, Ivo Vertat
doaj   +1 more source

Development of 2-D Generalized Tri-Focal Rotman Lens Beamforming Network to Excite Conformal Phased Arrays of Antennas for General Near/Far-Field Multi-Beam Radiations

IEEE Access, 2021
In this paper, we present a general closed-form solution of trifocal Rotman lens beamforming network (TFRL-BFN) design to excite a conformal phased array of antennas for multibeam radiations.
Hsi-Tseng Chou, Danai Torrungrueng
doaj   +1 more source

A 3D-Printed Spherical Dual-Circular Polarized Luneburg Lens Antenna for Ku-Band

IEEE Access
In this paper, we propose a novel three-dimensional-printed Luneburg lens for converting linear polarization to dual-circular polarization and successfully apply it in a multibeam antenna.
Qing Wang, Xiaohai Han, Pu Yu, Jian-Qiang Hou, Zhen-Ya Lei   +4 more
doaj   +1 more source