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US 8,576,133 B2Granted
Adjustable antenna assembly for receive blocking
AssigneeBroadcom Corporation
InventorsAhmadreza Reza Rofougaran, Maryam Rofougaran
Life of this patent
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Abstract
An RF receiver section includes an adjustable antenna assembly, a low noise amplifier module, and a down conversion module. The adjustable antenna assembly is configured to provide a first receive antenna structure and a second receive antenna structure. The first and second receive antenna structures receive an inbound wide bandwidth RF signal that includes an interferer RF signal component and a desired inbound RF signal component. The effective polarization of at least one of the first and second receive antenna structures is adjusted to reduce signal strength of the interferer RF signal component.
Claims20
A radio frequency (RF) receiver section comprises:
- an adjustable antenna assembly configured to provide a first receive antenna structure and a second receive antenna structure, the first and second receive antenna structures receive an inbound wide bandwidth RF signal that includes an interferer RF signal component with one or more outbound RF signals and a desired inbound RF signal component, wherein at least one of the first and the second receive antenna structures adjusts a polarization offset based on changing at least one characteristic of a plurality of characteristics of the first and second receive antenna structures to reduce signal strength of the interferer RF signal component, the adjustable antenna assembly functions to:
- in a first configuration, determine a first signal strength of the inbound wide bandwidth RF signal and a first signal strength of the desired inbound RF signal component;
- in another configuration, determine another signal strength of the inbound wide bandwidth RF signal and another signal strength of the desired inbound RF signal component;
- and
- determine the polarization offset based on the first and the another signal strength of the inbound wide bandwidth RF signal and the first and the another signal strength of the desired inbound RF signal component;
- a low noise amplifier module coupled to amplify the inbound wide bandwidth RF signal received by the first receive antenna structure and to amplify the inbound wide bandwidth RF signal received by the second receive antenna structure to produce at least one amplified inbound RF signal;
- and
- a down conversion module coupled to convert the at least one amplified inbound RF signal into at least one inbound symbol stream.
5 more elements
A radio frequency (RF) receiver section comprises:
- an adjustable antenna assembly configured to provide a receive antenna structure, wherein the receive antenna structure receives an inbound wide bandwidth RF signal that includes an interferer RF signal component with one or more outbound RF signals and a desired inbound RF signal component, wherein the receive antenna structure includes an polarization offset being adjustable by changing at least one characteristic of a plurality of characteristics to reduce signal strength of the interferer RF signal component, the adjustable antenna assembly functions to:
- in a first configuration of the adjustable antenna assembly, determine a first signal strength of the inbound wide bandwidth RF signal and a first signal strength of the desired inbound RF signal component;
- in another configuration of the adjustable antenna assembly, determine another signal strength of the inbound wide bandwidth RF signal and another signal strength of the desired inbound RF signal component;
- and
- determine the polarization offset based on the first and the another signal strength of the inbound wide bandwidth RF signal and the first and the another signal strength of the desired inbound RF signal component;
- a low noise amplifier module coupled to amplify the inbound wide bandwidth RF signal received to produce an amplified inbound RF signal;
- and
- a down conversion module coupled to convert the amplified inbound RF signal into an inbound symbol stream.
5 more elements
A radio frequency integrated circuit (RFIC) comprises:
- an adjustable antenna assembly configured to provide a receive antenna structure and a transmit antenna structure, wherein the transmit antenna structure transmits an outbound RF signal having a carrier frequency within a transmit frequency band, wherein the receive antenna structure receives an inbound wide bandwidth RF signal that includes an interferer RF signal component with one or more outbound RF signals and a desired inbound RF signal component, wherein the receive antenna structure includes a polarization offset that is adjusted based on changing at least one characteristic of a plurality of characteristics to reduce signal strength of the interferer RF signal component, the adjustable antenna assembly functions to:
- in a first configuration, determine a first signal strength of the inbound wide bandwidth RF signal and a first signal strength of the desired inbound RF signal component;
- in another configuration, determine another signal strength of the inbound wide bandwidth RF signal and another signal strength of the desired inbound RF signal component;
- and
- determine the polarization offset based on the first and the another signal strength of the inbound wide bandwidth RF signal and the first and the another signal strength of the desired inbound RF signal component;
- a low noise amplifier module coupled to amplify the inbound wide bandwidth RF signal received to produce an amplified inbound RF signal;
- a down conversion module coupled to convert the amplified inbound RF signal into an inbound symbol stream;
- an up conversion module coupled to convert an outbound symbol stream into an up converted signal;
- a power amplifier module coupled to amplify the up converted signal to produce the outbound RF signal;
- a baseband processing module coupled to:
- convert outbound data into the outbound symbol stream;
- and
- convert the inbound symbol stream into inbound data.
10 more elements
Dependencies are inferred from the claim text.