Design of 15 dB directional coupler using substrate-integrated waveguide technology

2012 ◽  
Vol 54 (4) ◽  
pp. 970-973 ◽  
Author(s):  
Moustapha Mbaye ◽  
Larbi Talbi ◽  
Khelifa Hettak ◽  
Ali Kabiri
Keyword(s):  
Directional Coupler ◽  
Substrate Integrated Waveguide

Compact substrate integrated waveguide six-port directional coupler for X-band applications

2015 ◽  
Vol 57 (11) ◽  
pp. 2589-2592 ◽  
Author(s):  
Giuseppe Venanzoni ◽  
Davide Mencarelli ◽  
Antonio Morini ◽  
Marco Farina ◽  
Onofrio Losito ◽  
...  
Keyword(s):  
Directional Coupler ◽  
Substrate Integrated Waveguide ◽  
X Band

Design of a Hybrid Directional Coupler in Empty Substrate Integrated Waveguide (ESIW)

2015 ◽  
Vol 25 (12) ◽  
pp. 796-798 ◽  
Author(s):  
Marcos D. Fernandez ◽  
Jose A. Ballesteros ◽  
Angel Belenguer
Keyword(s):  
Directional Coupler ◽  
Substrate Integrated Waveguide

scholarly journals Wideband Directional Coupler for Millimeter Wave Application based on Substrate Integrated Waveguide

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Mohammad Javad Tavakoli ◽  
Ali Reza Mallahzadeh
Keyword(s):  
Numerical Methods ◽  
Millimeter Wave ◽  
Directional Coupler ◽  
Return Loss ◽  
Wide Band ◽  
Substrate Integrated Waveguide ◽  
Fractional Bandwidth ◽  
High Isolation ◽  
Microwave Applications ◽  
Hole Structure

Recently, Substrate Integrated Waveguide (SIW) techniques have been noticed for millimeter wave devices in microwave applications. In this paper, we are developing a wide band directional 3 dB coupler with a phase of 90̊ phase delay in the range of 30-40 GHz based on periodic vias and multi hole structure. For achieving this wide bandwidth multi-section coupler is designed based on the theoretical modeling and the simulation result is compared with HFSS and CST with  two different  numerical  methods show good performance with low insertion and return loss, broad operational bandwidth and high isolation. A fractional bandwidth is about 28.5 %.

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