Ultra-wideband antenna
First Claim
1. An ultra-wideband antenna comprising:
- a dielectric substrate having a first surface and a second surface;
a ground plate having a first slot formed on top of said dielectric substrate;
a metal plate having a feed-point and a second slot formed on top of said dielectric substrate, said second slot having a total length about a half-wavelength at the center frequency of a notched frequency band of said antenna; and
a transmission line including a signal wire and a feed-line ground unit connected to said feed-point and said ground plate respectively.
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Accused Products
Abstract
An ultra-wideband (UWB) antenna is provided. It comprises a dielectric substrate, a ground plate, a metal plate, and a transmission line. The ground plate formed on the dielectric substrate has a first slot thereon. The metal plate formed on the dielectric substrate has a feed-point and a second slot thereon. The total length of the second slot is about a half-wavelength at the desired notched frequency for the UWB antenna. By embedding the second slot of a suitable length on the metal plate resided in the first slot, a band notched characteristic is achieved for the antenna in the 5 GHz band, thereby overcoming the problem of signal interference with the UWB operations. The disclosed antenna and the circuitry for the antenna system are easily integrated. With the simple structure, the fabrication cost for the antenna is also reduced.
23 Citations
11 Claims
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1. An ultra-wideband antenna comprising:
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a dielectric substrate having a first surface and a second surface; a ground plate having a first slot formed on top of said dielectric substrate; a metal plate having a feed-point and a second slot formed on top of said dielectric substrate, said second slot having a total length about a half-wavelength at the center frequency of a notched frequency band of said antenna; and a transmission line including a signal wire and a feed-line ground unit connected to said feed-point and said ground plate respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification