US 2010/0134375 A1 · PLANAR ANTENNA

Abstract

A planar antenna includes: a substrate unit; a feeding line provided on the substrate unit and having first and second ends, a feeding point disposed between the first and second ends, and first and second feeding segments extending from the feeding point in opposite directions to the first and second ends, respectively, the lengths of the first and second feeding segments having a length difference that is approximately λ/2, where λ is the wavelength of an operating frequency of the planar antenna; a first radiating unit provided on the substrate unit and disposed adjacent to and spaced apart from the first feeding segment of the feeding line; a second radiating unit provided on the substrate unit and disposed adjacent to and spaced apart from the second feeding segment of the feeding line; and a grounding unit provided on the substrate unit for grounding.

Claims14

Dependent claims

A planar antenna comprising:

a substrate unit;
a feeding line provided on said substrate unit and having first and second ends, a feeding point disposed between said first and second ends, and first and second feeding segments extending from said feeding point in opposite directions to said first and second ends, respectively, the lengths of said first and second feeding segments having a length difference that is approximately λ/2, where λ is the wavelength of an operating frequency of said planar antenna;
a first radiating unit provided on said substrate unit and disposed adjacent to and spaced apart from said first feeding segment of said feeding line;
a second radiating unit provided on said substrate unit and disposed adjacent to and spaced apart from said second feeding segment of said feeding line;
and
a grounding unit provided on said substrate unit for grounding.

3 more elements

A planar antenna comprising:

a substrate unit including spaced apart upper and lower substrates and an insulator spacer sandwiched between said upper and lower substrates in such a manner to form an air gap between said upper and lower substrates, said upper substrate having an upper surface, said lower substrate having a lower surface;
a feeding line provided on said upper surface of said upper substrate and having first and second ends, a feeding point disposed between said first and second ends, and first and second feeding segments extending from said feeding point in opposite directions to said first and second ends, respectively;
a first radiating unit provided on said upper surface of said upper substrate and disposed adjacent to and spaced apart from said first feeding segment of said feeding line;
a second radiating unit provided on said upper surface of said upper substrate and disposed adjacent to and spaced apart from said second feeding segment of said feeding line;
and
a grounding unit provided on said lower surface of said lower substrate for grounding.

3 more elements

Dependencies are inferred from the claim text.

Planar antenna

Life of this patent

Planar antenna

Life of this patent

Abstract

Claims14