An X Dual-Band Dual-Circularly Polarized Coaxial Feed Network

2021 ◽  
Author(s):  
Bowen Xue ◽  
Zehong Yan ◽  
Changde Feng ◽  
Zhongming Ma
Keyword(s):  
Dual Band ◽  
Circularly Polarized ◽  
Feed Network ◽  
Coaxial Feed

A multilayer dual wideband circularly polarized microstrip antenna with DGS for WLAN/Bluetooth/ZigBee/Wi-Max/ IMT band applications

2015 ◽  
Vol 9 (2) ◽  
pp. 317-325 ◽  
Author(s):  
Amanpreet Kaur ◽  
Rajesh Khanna ◽  
Machavaram Kartikeyan
Keyword(s):  
Dielectric Constant ◽  
Surface Area ◽  
Microstrip Antenna ◽  
Dual Band ◽  
Defected Ground Structure ◽  
Mobile Telecommunications ◽  
Ieee 802.11B ◽  
Ground Structure ◽  
Circularly Polarized ◽  
Feed Network

In this paper, a three layered stacked circularly polarized rectangular dual band microstrip antenna with a defected ground structure (DGS) and a feed network with stub (showing dual wideband characteristic) is designed, fabricated, and tested for WLAN, Zig bee, Wi-Max, and IMT band applications. The proposed antenna is fabricated on an FR4 substrate with dielectric constant (εr) of 4.4; tanδ of 0.0024 and a height of 1.57 mm.The antenna has a surface area of 4.8 × 4.1 cm2and a total height of 5.1 mm. The designed antenna covers two wireless bands from 2.39 to 2.64GHz and 3.39–3.76 GHZ with impedance bandwidths (VSWR < 2) of 250 MHz (9% bandwidth centered at 2.515 GHz) and 370 MHz (10% bandwidth centered at 3.57 GHz), respectively. This antenna is capable of covering IEEE 802.11b/g/n standards of WLAN from 2.4 to 2.485 GHz, bluetooth applications from 2.4 to 2.483 GHz, ZigBee applications from 2.4 to 2.485 GHz, IEEE 802.16/ Wi-MaX applications from 3.4 to 3.69 GHz and international mobile telecommunications (IMT) band from 3.4 to 3.6 GHz. As the antenna is circularly polarized, the misalignment of the receiver with transmitter does not affect the performance of the system. The antenna designing was done using CST MWS V'10 and the prototype of the designed antenna was tested for the validation of S11(dB) and gain results against the simulated ones experimentally. The proposed antenna shows a gain of 4.08 dBi at 2.5 GHz and a gain of 5.024 dBi at 3.51 GHz.

Dual-Band Circularly Polarized Antenna with Two Pairs of Crossed-Dipoles for RFID Reader

2021 ◽  
pp. 1-1
Author(s):  
Rui Xu ◽  
Jie Liu ◽  
Kun Wei ◽  
Wei Hu ◽  
Zi-Jian Xing ◽  
...  
Keyword(s):  
Dual Band ◽  
Circularly Polarized ◽  
Rfid Reader

scholarly journals A dual-band circularly polarized antenna with wide HPBWs for CNSS applications

2018 ◽  
Vol 15 (12) ◽  
pp. 20180409-20180409 ◽  
Author(s):  
Chao Li ◽  
Fushun Zhang ◽  
Fan Zhang ◽  
Fukun Sun ◽  
Kaiwen Yang
Keyword(s):  
Dual Band ◽  
Circularly Polarized

scholarly journals Modified Dual-Band Stacked Circularly Polarized Microstrip Antenna

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Guo Liu ◽  
Liang Xu ◽  
Yi Wang
Keyword(s):  
Radiation Pattern ◽  
Global Positioning System ◽  
Microstrip Antenna ◽  
High Performance ◽  
Axial Ratio ◽  
Dual Band ◽  
Optimized Design ◽  
Positioning System ◽  
Circularly Polarized ◽  
Global Positioning

A novel high-performance circularly polarized (CP) antenna is proposed in this paper. Two separate antennas featuring the global positioning system (GPS) dual-band operation (1.575 GHz and 1.227 GHz for L1 band and L2 band, resp.) are integrated with good isolation. To enhance the gain at low angle, a new structure of patch and two parasitic metal elements are introduced. With the optimized design, good axial ratio and near-hemispherical radiation pattern are obtained.

Compact Dual-Band Circularly Polarized Antenna Design for Navigation Terminals

2016 ◽  
Vol 15 ◽  
pp. 802-805 ◽  
Author(s):  
Yan Li ◽  
Buning Tian ◽  
Jiangbo Xue ◽  
Guangding Ge
Keyword(s):  
Antenna Design ◽  
Dual Band ◽  
Circularly Polarized
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