Antenna for a portable communication apparatus, and a portable communication apparatus comprising such an antenna
First Claim
1. An antenna for a portable communication apparatus, the antenna comprising a radiator having a first end to be connected to radio circuitry in the portable communication apparatus, and a second end, a feedback conductor having a first end, which is electrically connected to the second end of the radiator, the feedback conductor extending along the radiator in a first direction from the second end of the radiator towards the first end of the radiator, wherein the feedback conductor includes a second end, extending along the radiator in a second direction towards the second end of the radiator, for tuning a frequency range of the antenna, and said radiator is an elongated helical radiator.
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Accused Products
Abstract
An antenna for a portable communication apparatus has a radiator with first and second ends, the first end being connected to radio circuitry in the portable communication apparatus. The antenna also has a feedback conductor having a first end that is connected to the second end of the radiator. The feedback conductor extends along the radiator in a first direction from the second end of the radiator towards the first end of the radiator. A second end of the feedback conductor extends along the radiator in a second direction from the first end of the radiator towards the second end of the radiator, for tuning the frequency of the antenna.
26 Citations
8 Claims
- 1. An antenna for a portable communication apparatus, the antenna comprising a radiator having a first end to be connected to radio circuitry in the portable communication apparatus, and a second end, a feedback conductor having a first end, which is electrically connected to the second end of the radiator, the feedback conductor extending along the radiator in a first direction from the second end of the radiator towards the first end of the radiator, wherein the feedback conductor includes a second end, extending along the radiator in a second direction towards the second end of the radiator, for tuning a frequency range of the antenna, and said radiator is an elongated helical radiator.
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8. A multi-layer printed circuit board, comprising an antenna including a radiator having a first end to be connected to radio circuitry in the portable communication apparatus, and a second end, a feedback conductor having a first end, which is electrically connected to the second end of the radiator, the feedback conductor extending along the radiator In a first direction from the second end of the radiator towards the first end of the radiator, wherein the feedback conductor includes a second end, extending along the radiator in a second direction towards the second end of the radiator, for tuning a frequency range of the antenna.
Specification