Patent ID: 7659856

Claim:
An extremely miniaturized digital TV signal reception antenna, built in a mobile device and controlled by a tuner of the mobile device for automatically switching the range of a bandwidth of received digital TV signals, comprising: a substrate provided with a plate having a grounding metallic surface and a first clearance surface, a second clearance surface being provided on the same side of the grounding metallic surface for allowing the surface of the substrate to be exposed, the second clearance surface having a metallic microstrip line, the first clearance surface being provided thereon with a plurality of leads and a contact; an antenna unit electrically connected to the plurality of leads and the contact; and a switch unit having a plurality of control ends, input ends and an output end, the plurality of control ends being electrically connected with a tuner, the input ends being electrically connected with the plurality of leads, the output end being electrically connected with the metallic microstrip line; wherein the tuner outputs a signal to any one of the control ends of the switch unit when switching channels, the received digital TV signals are input via the input end of the control end and is output to the metallic microstrip line via the output end, the signal is transmitted from the metallic microstrip line to the mobile device and is processed therein.