Integration of slot antenna in LTCC package for 60GHz radios

A slot antenna implemented in a thin cavity-down ceramic ball grid array (CBGA) package in low-temperature cofired ceramic (LTCC) technology is reported. The antenna, intended for use in highly integrated 60GHz radios, has achieved an acceptable impedance bandwidth from 59 to 65GHz and a peak gain of 11dBi at 61.5GHz with an estimated efficiency of 94. © The Institution of Engineering and Technology 2008.