Full-Band Antenna System

摘要

The disclosure provides a full-band antenna system including a metal backing and a main antenna module. The metal backing includes a header, a middle cover and a lower head. The main antenna module includes a circuit board, a feed part on the circuit board, a ground point and a matching circuit. The circuit board includes a substrate and an earth plate. The feed part and the matching circuit are located on the substrate, and the ground point is on the earth plate. The matching circuit is connected with the feed part, including a variable capacitance. By the variable capacitance of the matching circuit, it is beneficial to adjust the performance of antenna of all range of frequency conveniently and optimize the antenna's radiant efficiency up to the utmost extent.

主权项

1. A full-band antenna system, including:
a metal backing having two narrow crevices, between which a plurality of intervals are provided, the crevices dividing the metal backing into a header, a middle cover and a lower head; a main antenna module below the metal backing, the main antenna module including a circuit board comprising a substrate and an earth plate stacked on the substrate, a feed part on the circuit board, a ground point and a matching circuit; the matching circuit including an one-end grounded variable capacity; wherein the feed part and the matching circuit are stacked on the substrate, and the feed part is connected electrically with the matching circuit; the ground point is on the earth plate; the feed part and the ground point both are connected electrically with the lower head; the earth plate has semi-closed gap corresponding to the crevices between the middle cover and the lower head.