Compact High-Isolation Base-Station Duplexer Using Triple-Mode Ceramic Cavities

2018 ◽  
Vol 65 (10) ◽  
pp. 8092-8100 ◽  
Author(s):  
David R. Hendry ◽  
Amin M. Abbosh
2020 ◽  
Vol 69 (9) ◽  
pp. 10000-10008
Author(s):  
Wensong Wang ◽  
Zhenyu Zhao ◽  
Quqin Sun ◽  
Xinqin Liao ◽  
Zhongyuan Fang ◽  
...  

2014 ◽  
Vol 8 (6) ◽  
pp. 386-393 ◽  
Author(s):  
Jung‐Nam Lee ◽  
Heon‐Kook Kwon ◽  
Byung‐Su Kang ◽  
Kwang‐Chun Lee

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Yuxuan Huang ◽  
Zeqi Zhu ◽  
Shuting Cai ◽  
Xiaoming Xiong ◽  
Yuan Liu

A wideband dual-polarized multidipole antenna for base station applications is proposed. It consists of a pair of large square-shaped loop dipoles and a pair of small rectangle loop dipoles as radiation elements. A pair of small rectangle loop dipoles is fed by T-shaped feed structure which is in the large square-shaped loop dipoles radiating arm so that the antenna generates an additional resonance and obtains a wider bandwidth. The proposed antenna was fabricated and measured, and the results show that the antenna achieves a wide impedance bandwidth of 63.7 % with VSWR<1.5 covering the frequency range from 1.55 to 3 GHz. A high isolation is better than 29 dB within the operating frequency bandwidth. Moreover, an average gain 8 dBi and a stable radiation pattern with 3 dB beamwidth of 69° ± 4° at H-plane are obtained.


2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Botao Feng ◽  
Shufang Li ◽  
Wenxing An ◽  
Weijun Hong ◽  
Sixing Yin

A novel differentially driven dual-polarized dual-wideband complementary patch antenna with high isolation is proposed for 2G/3G/LTE applications. In order to generate dual-polarization and dual-wideband properties, a pair of biorthogonal dual-layerη-shaped tapered line feeding structures is utilized to feed two pairs of dual-layer U-shaped patches, respectively. The upper-layer U-shaped patches mainly serve the upper frequency band, while the lower-layer ones chiefly work for the lower frequency band. Besides, a horned reflector is introduced to improve radiation patterns and provide stable gain. The prototype antenna can achieve a bandwidth of 25.7% (0.78 GHz–1.01 GHz) with a stable gain of7.8±0.7 dBi for the lower band, and a bandwidth of 45.7% (1.69 GHz–2.69 GHz) with a gain of9.5±1.1 dBi for the upper band. Input isolation exceeding 30 dB has been obtained in the wide bandwidth. Thus, it can be potentially used as a base station antenna for 2G/3G/LTE networks.


2013 ◽  
Vol 49 (20) ◽  
pp. 1257-1258 ◽  
Author(s):  
Jung N. Lee ◽  
Jae H. Jung ◽  
Kwang C. Lee
Keyword(s):  

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