×

Dual-frequency antenna device and low-frequency antenna module

  • US 10,361,729 B2
  • Filed: 09/08/2017
  • Issued: 07/23/2019
  • Est. Priority Date: 09/08/2017
  • Status: Active Grant
First Claim
Patent Images

1. A dual-frequency antenna device, comprising:

  • a diplexer including an antenna contact, a high-frequency contact, a low-frequency contact, and a plurality of grounding contacts;

    a high-frequency antenna electrically connected to the high-frequency contact of the diplexer; and

    a low-frequency antenna module including;

    two switching units each including an electrical connection point, a first switching point, and a second switching point, wherein the two switching units are synchronously operated to electrically connect the two electrical connection points to the two first switching points or to the two second switching points;

    a first matching circuit electrically connected to the two first switching points of the two switching units;

    a second matching circuit electrically connected to the two second switching points of the two switching units; and

    a low-frequency antenna electrically connected to one of the two electrical connection points, and the other electrical connection point electrically connected to the low-frequency contact of the diplexer;

    wherein when the two electrical connection points are respectively and electrically connected to the two first switching points, the low-frequency antenna is electrically connected to the first matching circuit for being operated in a first low-frequency band;

    when the two electrical connection points are respectively and electrically connected to the two second switching points, the low-frequency antenna is electrically connected to the second matching circuit for being operated in a second low-frequency band different from the first low-frequency band.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×