Title :
Ridge Substrate Integrated Waveguide (RSIW) Dual-Band Hybrid Ring Coupler
Author :
Djerafi, Tarek ; Aubert, Hervé ; Wu, Ke
Author_Institution :
Poly-Grames Res. Center, Ecole Polytech. de Montreal, Montreal, QC, Canada
Abstract :
A novel dual-band ring coupler is proposed in Ridge Substrate Integrated Waveguide (RSIW) technology. The structure is based on two concentric rings with the outer ring loaded by a low insertion loss de-multiplexing scheme allowing independent dual band operation. The RSIW ensures a wide-band fundamental mode operation covering both frequency bands while providing a compact design. A C/K band coupler is experimentally verified showing coupling bandwidths of 6.9% and 14.6% centered at 7.25 and 20.5 GHz, respectively.
Keywords :
demultiplexing; substrate integrated waveguides; waveguide couplers; C-K band coupler; RSIW technology; concentric rings; dual-band hybrid ring coupler; frequency 7.25 GHz to 20.5 GHz; independent dual band operation; low insertion loss demultiplexing scheme; ridge substrate integrated waveguide technology; wide-band fundamental mode operation; Bandwidth; Couplers; Couplings; Dual band; Electromagnetic waveguides; Photonic band gap; Substrates; De-multiplexing; dual-band; ridge substrate integrated waveguide (RSIW); ring coupler;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2011.2181158
