An EBG spatial power combiner

A new electromagnetic bandgap (EBG) spatial power combiner is proposed. The prototype consists of the design of the EBG ground holes structure, the active-EBG coupler, and the Vivaldi antenna array. A 17 dB system gain coupled with a 5.5 GHz of impedance bandwidth and good out-of-band suppression has been achieved. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1534–1536, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23421