QUALCOMM Incorporated
SHORTED-STUB ANTENNA

Abstract:

An antenna system includes: a ground plane conductor; a substrate; and an array including subarrays each configured to receive energy of a radiating frequency at an input and including: a microstrip signal line electrically coupled to the input and disposed such that the substrate is disposed between the microstrip signal line and the ground plane conductor; microstrip stubs extending from the microstrip signal line and disposed such that the substrate is disposed between the microstrip stubs and the ground plane conductor; and electrically-conductive connectors each connected to a respective one of the microstrip stubs about one-quarter of a wavelength, at the radiating frequency in the substrate, from the microstrip signal line along a length of the respective one of the microstrip stubs and electrically connecting the respective one of the microstrip stubs to the ground plane conductor.