Folded quarter-wave patch antenna
First Claim
1. A folded quarter-wave patch antenna, comprising:
- a folded conductor plate formed from a single conductor and having a first end and a second end, said conductor plate forming first and second arms in parallel with each other,wherein a signal unit is coupled to said first arm, said signal unit feeding said antenna a first signal of a first frequency band such that said first signal creates surface current on said conductor plate, said surface current being substantially greater in magnitude in said first arm then in said second arm; and
a ground plane separated from said conductor plate by a dielectric substrate, said ground plane electrically connected to said conductor plate first end, said conductor plate second end electrically isolated from said ground plane.
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Accused Products
Abstract
A folded quarter-wave patch antenna which includes a conductor plate having first and second arms spaced apart. A ground plane is separated from the conductor plate by a dielectric substrate and is approximately parallel to the conductor plate. The ground plane is electrically connected to the first arm at one end. A signal unit is electrically coupled to the first arm. The signal unit transmits and/or receives signals having a selected frequency band. The folded quarter-wave patch antenna can also act as a dual frequency band antenna. In dual frequency band operation, the signal unit provides the antenna with a first signal of a first frequency band and a second signal of a second frequency band.
116 Citations
8 Claims
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1. A folded quarter-wave patch antenna, comprising:
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a folded conductor plate formed from a single conductor and having a first end and a second end, said conductor plate forming first and second arms in parallel with each other, wherein a signal unit is coupled to said first arm, said signal unit feeding said antenna a first signal of a first frequency band such that said first signal creates surface current on said conductor plate, said surface current being substantially greater in magnitude in said first arm then in said second arm; and a ground plane separated from said conductor plate by a dielectric substrate, said ground plane electrically connected to said conductor plate first end, said conductor plate second end electrically isolated from said ground plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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- Resources
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Current AssigneeQualcomm, Inc.
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Original AssigneeQualcomm, Inc.
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InventorsNghiem, David
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Primary Examiner(s)Wong, Don
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Assistant Examiner(s)Malos, Jennifer H.
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Application NumberUS08/825,544Time in Patent Office1,002 DaysField of Search343/700 MS, 343/702US Class Current343/700.0MSCPC Class CodesH01Q 1/243 with built-in antennasH01Q 5/371 Branching current pathsH01Q 9/0421 with a shorting wall or a s...
