Microstrip antenna device, particularly for a UHF receiver

#This invention relates to microstrip antenna devices, and finds particular application in the UHF reception of satellite television signals.

#As is known, a microstrip antenna device has a radiating structure comprising:

#a dielectric layer, a conductive patch of a chosen shape on one side of the dielectric layer, and on the other side of the conductive layer a conductive plate forming a ground plane, and

#Other characteristics and advantages of the invention will become clear in the light of the following detailed description and the accompanying drawings.

#FIG. 1 is a partial cross sectional view, along the section line I--I (FIG. 4), of a conductive patch according to the invention;

#FIG. 1A shows the cross section of FIG. 1 in an alternative embodiment;

#With reference to FIGS. 1 to 3, the microstrip antenna device comprises, in a conventional manner, a dielectric layer CD, having on one side a conductive patch PC of a chosen shape, and on the other side a conductive plate forming ground plane PM.

#The dielectric layer CD can, for example, consist of air.

#The conductive patch is etched on a single-face printed circuit CI.