A quad band quadrature branch line coupler using coupled line sections

2017 ◽  
Author(s):  
Syed A. Imam ◽  
Aijaz M. Zaidi ◽  
Amit Choudhary ◽  
Binod K. Kanaujia ◽  
Manish Kumar Singh
Keyword(s):  
Coupled Line ◽  
Branch Line

scholarly journals Miniaturisation of branch line couplers with a compact transmission line topology based on coupled line section

2020 ◽  
Vol 14 (5) ◽  
pp. 448-455
Author(s):  
Mukesh Kumar ◽  
Sk Nurul Islam ◽  
Gobinda Sen ◽  
Tannistha Mitra Das ◽  
Susanta Kumar Parui ◽  
...  
Keyword(s):  
Transmission Line ◽  
Coupled Line ◽  
Branch Line ◽  
Line Section

A Compact Microstrip Wideband Arbitrary Branch-Line Coupler with Coupled-Line Impedance-Transforming Structures

2013 ◽  
Vol 33 (3) ◽  
pp. 256-270
Author(s):  
Yongle Wu ◽  
Weinong Sun ◽  
Sai-Wing Leung ◽  
Yinliang Diao ◽  
Kwok-Hung Chan
Keyword(s):  
Coupled Line ◽  
Branch Line

A Miniaturized Wideband Three-Section Branch-Line Hybrid With Harmonic Suppression Using Coupled Line and Open-Ended Stubs

2017 ◽  
Vol 27 (12) ◽  
pp. 1059-1061 ◽  
Author(s):  
Rusan Kumar Barik ◽  
Rathod Rajender ◽  
Sholampettai Subramanian Karthikeyan
Keyword(s):  
Harmonic Suppression ◽  
Coupled Line ◽  
Branch Line

scholarly journals Monolithic Miniaturized Differentially-Fed Branch-Line Directional Coupler in GaAs Monolithic Technology

Electronics ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 446
Author(s):  
Slawomir Gruszczynski ◽  
Robert Smolarz ◽  
Changying Wu ◽  
Krzysztof Wincza
Keyword(s):  
Directional Coupler ◽  
Center Frequency ◽  
Semiconductor Technology ◽  
Coupled Line ◽  
Full Size ◽  
Branch Line ◽  
Power Split ◽  
24 Ghz ◽  
Measured Power

In this paper, a design of a miniaturized branch-line directional coupler is presented. The coupler is designed with balanced coupled-line sections, which are electrically shortened by the application of lumped capacitors. To measure the parameters of the coupler, appropriate baluns have been designed. The coupler has been designed in a GaAs PH25 UMS (united monolithic semiconductor) technology with the center frequency of 24 GHz. The measured power split equals 3 dB with the transmission/coupling imbalance not exceeding 0.6 dB. The measured return losses equal 17 dB at the center frequency, whereas the isolation reaches 17 dB. The fabricated coupler‘s size equals 630 um × 487 um, which is 0.19 of the full size of the directional coupler in the chosen technology (1191 um × 1170 um).

Compact Branch-Line Balun Using Coupled-Line and Open Stubs Fabricated On Paper Substrate

2021 ◽  
pp. 153953
Author(s):  
Kanaparthi V. Phani Kumar ◽  
Rusan Kumar Barik ◽  
Idury Satya Krishna ◽  
S.S. Karthikeyan
Keyword(s):  
Paper Substrate ◽  
Coupled Line ◽  
Branch Line

Parallel coupled-line bandpass filter with branch-line shape for G-band frequency

2009 ◽  
Vol 45 (16) ◽  
pp. 838 ◽  
Author(s):  
C.-J. Hwang ◽  
L.B. Lok ◽  
I.G. Thayne ◽  
K. Elgaid
Keyword(s):  
Line Shape ◽  
Bandpass Filter ◽  
Coupled Line ◽  
Band Frequency ◽  
Branch Line
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