Method and system for power control with optimum power efficiency with a multi-port distributed antenna
First Claim
1. A method for enabling communication, the method comprising:
- in a wireless device, selectively enabling one or more power amplifiers coupled to a multi-port distributed antenna, wherein;
said selective enabling is based on a desired output power radiated from said multi-port distributed antenna; and
said power amplifiers are coupled to one or more ports on said multi-port distributed antenna based on an output impedance of said power amplifiers and a characteristic impedance of said ports on said multi-port distributed antenna.
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Abstract
Methods and systems for power control with optimum power efficiency with a multi-port distributed antenna are disclosed and may include selectively enabling one or more power amplifiers (PAs) coupled to the antenna. The selective enabling may be based on a desired output power radiated from the antenna, and the PAs may be coupled to ports on the antenna based on an output impedance of the PAs and a characteristic impedance of the ports. Each of the PAs may be configured for maximum efficiency in different power ranges. The power ranges may be inversely proportional to the output impedance of the PAs. The output power may be monitored utilizing a power detector, such as an envelope detector, coupled to the antenna. The antenna may be integrated on a chip with the one or more PAs or may be located external to the chip. The antenna may include a microstrip antenna.
137 Citations
20 Claims
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1. A method for enabling communication, the method comprising:
in a wireless device, selectively enabling one or more power amplifiers coupled to a multi-port distributed antenna, wherein; said selective enabling is based on a desired output power radiated from said multi-port distributed antenna; and said power amplifiers are coupled to one or more ports on said multi-port distributed antenna based on an output impedance of said power amplifiers and a characteristic impedance of said ports on said multi-port distributed antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for enabling communication, the system comprising:
one or more circuits for use in a wireless device, said one or more circuits comprising a plurality of power amplifiers, and said plurality of power amplifiers are coupled to a single distributed antenna via a plurality of antenna ports, wherein; said one or more circuits are operable to selectively enable one or more of said power amplifiers coupled to a multi-port distributed antenna, wherein; said selective enabling is based on a desired output power radiated from said multi-port distributed antenna; and said power amplifiers are coupled to said antenna ports based on an output impedance of said power amplifiers and a characteristic impedance of said ports on said multi-port distributed antenna. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification