Abstract
Presented are two novel double layer substrate integrated waveguide (SIW)-based couplers, the longitudinal-slots-based broadwall SIW coupler and its corresponding half-mode SIW coupler. Coupling takes place through a set of narrow, offset slots, which feature a flexible design providing a wide coupling dynamic range with wideband characteristics. This technique provides a compact design through both the double layer scheme and the half-mode structure. Isolation and input reflection characteristics better than 15 dB and 13 dB, respectively, are experimentally validated over 24% fractional bandwidth at 12.5 GHz. Measured coupling magnitudes and phases exhibit dispersive characteristics lower than 1 dB, and 8° with respect to the adopted design values, respectively, over the entire frequency band.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
