Planar type wideband lpda antenna applied to vhf/uhf channel

A dipole and antenna technology, applied in the field of planar broadband LPDA antennas, can solve the problems of affecting antenna performance and unsatisfactory output.
CN1468457AInactive Publication Date: 2004-01-14株式会社麦克斯维夫
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
株式会社麦克斯维夫
Publication Date
2004-01-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

A planar type wideband LPDA antenna has an UHF band of 470 MHz to 752 MHz and comprises: a nonconductive substrate board having a low dielectric and a small loss of an electromagnetic wave; and an antenna pattern arranged on the nonconductive substrate board and having a feed point for the supply of an electric power, the feed point being connected to a TV receiver module, the antenna pattern including an UHF dipole for an UHF band and a VHF dipole for a VHF band, the UHF dipole comprising a first dipole which is the longest dipole among the UHF dipoles and the VHF dipole comprising a second dipole for a high VHF channel, the second dipole being perpendicularly connected to one end of the first dipole.
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Description

technical field

[0001] The present invention relates to television receiver antennas, in particular to planar broadband LPDA (logarithmic periodic dipole array) antennas suitable for VHF (Very High Frequency) / UHF (Ultra High Frequency) channels, which are compatible with television receivers or computers The TV receiving card is connected to receive TV broadcast signals, and has a small-sized flat shape. Background technique

[0002] Generally, the antenna is connected to the indoor TV receiver or the TV receiving card of the computer. V-shaped antennas are suitable for VHF bands, while parabolic or loop antennas are suitable for UHF bands.

[0003] However, these antennas take up space and are oddly shaped. Therefore, it is out of harmony with the surrounding environment. Sometimes, people feel that these antennas affect the aesthetics.

[0004] Also, where viewers watch television broadcasts via personal computers, but do not wish to leak such viewing to the public, th...

Claims

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