DTV Antenna Apparatus
AssigneeAvermedia Technologies, Inc.
InventorsYen-Yu Chen, Kuo-Ying Su, Yung-Da Lin
Life of this patent
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Abstract
The present invention discloses a DTV antenna apparatus build in a portable device. The portable device includes a system ground. The DTV antenna includes a ground plane with a short circuit point, an extending metal arm with a grounding point and a radiation element. The ground plane is the system ground. The radiation element and the ground plane are arranged in parallel to each other. The extending metal arm connects with the short circuit point. The antenna receives signals with frequencies in the range from 470 MHz to 870 MHz. The radiation element includes a radiation arm and a parasitic arm. The radiation arm has a feeding terminal. The parasitic arm connects with the short circuit point.
Claims17
A DTV antenna apparatus built in a portable device, wherein the portable device has a system ground plane, comprising:
- a ground plane with a short circuit point, wherein the ground plane is the system ground plane;
- an extending metal arm with a grounding point, wherein the extending metal arm connects with the short circuit point;
- a radiation element to receive the frequency in the range from 470 MHz to 870 MHz, wherein the radiation element and the ground plane are arranged in parallel to each other, further comprises:
- a radiation arm with a feeding terminal;
- and
- a parasitic arm including a first body and a first extending arm, wherein the first extending arm extends from one side of the first body and is almost perpendicular to the side, the first extending arm is extended to connect with the short circuit point, a cross section constructed by the first extending arm and the side has an appearance similar to a step.
Dependencies are inferred from the claim text.