Design of dual-band coupled-line balun

2011 ◽  
Author(s):  
Hualiang Zhang ◽  
Jin Shao ◽  
Song Tan ◽  
Kevin J. Chen
Keyword(s):  
Dual Band ◽  
Coupled Line

A Dual-Band Coupled-Line Balun Filter

2007 ◽  
Vol 55 (11) ◽  
pp. 2406-2411 ◽  
Author(s):  
Lap Kun Yeung ◽  
Ke-Li Wu
Keyword(s):  
Dual Band ◽  
Coupled Line

scholarly journals Beamwidth-Enhanced Low-Profile Dual-Band Circular Polarized Patch Antenna for CNSS Applications

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Hongmei Liu ◽  
Chenhui Xun ◽  
Shaojun Fang ◽  
Zhongbao Wang
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Axial Ratio ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Coupled Line ◽  
Low Profile ◽  
Feed Network ◽  
Single Input ◽  
Half Power

A low-profile dual-band circular polarized (CP) patch antenna with wide half-power beamwidths (HPBWs) is presented for CNSS applications. Simple stacked circular patches are used to achieve dual-band radiation. To enhance the HPBW for the two operation bands, a dual annular parasitic metal strip (D-APMS) combined with reduced ground plane (R-GP) is presented. A single-input feed network based on the coupled line transdirectional (CL-TRD) coupler is also proposed to provide two orthogonal modes at the two frequency bands simultaneously. Experimental results show that the 10 dB impedance bandwidth is 32.7%. The 3 dB axial ratio (AR) bandwidths for the lower and upper bands are 4.1% and 6.5%, respectively. At 1.207 GHz, the antenna has the HPBW of 123° and 103° in the xoz and yoz planes, separately. And the values are 127° and 113° at 1.561 GHz.

A COMPACT DUAL-BAND COUPLED-LINE BALUN WITH TAPPED OPEN-ENDED STUBS

2011 ◽  
Vol 22 ◽  
pp. 109-122 ◽  
Author(s):  
Jin Shao ◽  
Hualiang (Bruce) Zhang ◽  
Chang Chen ◽  
Song Tan ◽  
Kevin J. Chen
Keyword(s):  
Dual Band ◽  
Coupled Line

scholarly journals An X/Ku Dual-Band Switch-Free Reconfigurable GaAs LNA MMIC Based on Coupled Line

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 160070-160077
Author(s):  
Chunshuang Xie ◽  
Zhongjun Yu ◽  
Cheng Tan
Keyword(s):  
Dual Band ◽  
Coupled Line

scholarly journals Dual‐band filtering power divider with capacitor‐loaded centrally coupled‐line resonators

2017 ◽  
Vol 11 (1) ◽  
pp. 36-41 ◽  
Author(s):  
Yunlong Lu ◽  
Gaole Dai ◽  
Yi Wang ◽  
Taijun Liu ◽  
Jifu Huang
Keyword(s):  
Power Divider ◽  
Dual Band ◽  
Coupled Line
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