Electronically scanned arrays of dual-polarized, doubly-mirrored balanced antipodal Vivaldi antennas (DmBAVA) based on modular elements

2006 ◽  
Author(s):  
M.W. Elsallal ◽  
D.H. Schaubert
Keyword(s):  
Electronically Scanned Arrays ◽  
Dual Polarized ◽  
Vivaldi Antennas

scholarly journals Dual Polarized Dual Fed Vivaldi Antenna for Cellular Base Station Operating at 1.7–2.7 GHz

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Marko Sonkki ◽  
Sami Myllymäki ◽  
Jussi Putaala ◽  
Eero Heikkinen ◽  
Tomi Haapala ◽  
...  
Keyword(s):  
Base Station ◽  
Performance Criteria ◽  
Impedance Bandwidth ◽  
Total Efficiency ◽  
Antenna Structure ◽  
Radiating Element ◽  
Vivaldi Antenna ◽  
Dual Polarized ◽  
Vivaldi Antennas ◽  
Better Than

The paper presents a novel dual polarized dual fed Vivaldi antenna structure for 1.7–2.7 GHz cellular bands. The radiating element is designed for a base station antenna array with high antenna performance criteria. One radiating element contains two parallel dual fed Vivaldi antennas for one polarization with 65 mm separation. Both Vivaldi antennas for one polarization are excited symmetrically. This means that the amplitudes for both antennas are equal, and the phase difference is zero. The orthogonal polarization is implemented in the same way. The dual polarized dual fed Vivaldi is positioned 15 mm ahead from the reflector to improve directivity. The antenna is designed for -14 dB impedance bandwidth (1.7–2.7 GHz) with better than 25 dB isolation between the antenna ports. The measured total efficiency is better than -0.625 dB (87%) and the antenna presents a flat, approximately 8.5 dB, gain in the direction of boresight over the operating bandwidth whose characteristics promote it among the best antennas in the field. Additionally, the measured cross polarization discrimination (XPD) is between 15 and 30 dB and the 3 dB beamwidth varies between 68° and 75° depending on the studied frequency.

scholarly journals An X-Band Dual-Polarized Vivaldi Antenna with High Isolation

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Denghui Huang ◽  
Hu Yang ◽  
Yuqing Wu ◽  
Fei Zhao
Keyword(s):  
Antenna Design ◽  
High Isolation ◽  
X Band ◽  
Vivaldi Antenna ◽  
The Cross ◽  
Dual Polarized ◽  
Vivaldi Antennas ◽  
Better Than

An X-band dual-polarized Vivaldi antenna with high isolation is proposed. The procedure of this antenna design includes the conventional Vivaldi antenna with regular slot edge (RSE), the dual-polarized Vivaldi antenna with two Vivaldi antennas which have different feeding point positions in a cross-shaped form, and the two Vivaldi antennas with a galvanic contact in soldering point. By applying the RSE, it reduced the dimensions of the Vivaldi antenna and improved its radiation performance. The modified antenna is fabricated and measured. The measured results show that S11<-10 dB at the entire X-band for the two Vivaldi antennas. The isolation (S21) between the two feeding ports, which has been improved by applying the different feeding point positions and the galvanic contact in soldering point, is better than 34 dB at X-band. In addition, the cross-polarized discrimination is better than 21 dB for the two Vivaldi antennas, and the measured results also include the gain of two Vivaldi antennas.

A Low-Profile Dual-Polarized Directional Antenna for Enhancing Channel Capacity in Indoor MIMO Systems

2010 ◽  
Vol E93-B (10) ◽  
pp. 2570-2577 ◽  
Author(s):  
Daisuke UCHIDA ◽  
Hiroyuki ARAI ◽  
Yuki INOUE ◽  
Keizo CHO
Keyword(s):  
Channel Capacity ◽  
Mimo Systems ◽  
Directional Antenna ◽  
Low Profile ◽  
Dual Polarized

Dual-Polarized Metasurface Using Multi-Layer Ceramic Capacitors for Radar Cross Section Reduction

2020 ◽  
Vol E103.B (8) ◽  
pp. 852-859
Author(s):  
Thanh-Binh NGUYEN ◽  
Naoyuki KINAI ◽  
Naobumi MICHISHITA ◽  
Hisashi MORISHITA ◽  
Teruki MIYAZAKI ◽  
...  
Keyword(s):  
Cross Section ◽  
Radar Cross Section ◽  
Ceramic Capacitors ◽  
Dual Polarized

The Spatial Virtual Polarization Filtering Algorithm Based on Dual Polarized Antenna Radar

2010 ◽  
Vol 32 (11) ◽  
pp. 2746-2750
Author(s):  
Yong Liu ◽  
Yong-zhen Li ◽  
Huan-yao Dai ◽  
Xue-song Wang
Keyword(s):  
Filtering Algorithm ◽  
Polarization Filtering ◽  
Dual Polarized ◽  
Dual Polarized Antenna

Om-Shape Microstrip Antennas for Dual Polarized Wideband and Multiband Response

2020 ◽  
Author(s):  
Aarti Ambekar ◽  
Amit Deshmukh ◽  
Venkata A. P. Chavali
Keyword(s):  
Microstrip Antennas ◽  
Dual Polarized
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