2019 Volume 22 Issue 6 Pages 574-578
This paper shows a design method for an Antenna-filter using a multi-layered suspended microstrip line (ML-SMSL) structure. The equivalent circuits using J-inverters, which are able to compensate for the elements of unwanted electromagnetic couplings, are introduced when the design parameters for the Antenna-filter with the ML-SMSL structure are calculated. Although the measured reflection characteristics for the fabricated Antenna-filter are a little different from those for the electromagnetic (EM) simulated one, the characteristics of radiation gain for the fabricated Antenna-filter are very close to those for the EM simulated one.
