SAW-LESS RECEIVER WITH A FREQUENCY TRANSLATED BPF HAVING A NEGATIVE RESISTANCE
First Claim
1. A surface acoustic wave (SAW)-less receiver comprises:
- a front end module (FEM) interface module operable to receive an inbound radio frequency (RF) signal that includes a loss error due to at least one of switching loss and inductor loss;
a radio frequency (RF) to intermediate frequency (IF) receiver section including;
an RF frequency translated bandpass filter (FTBPF) operable to;
frequency translate a baseband filter response to an RF filter response;
filter the inbound RF signal in accordance with the RF filter response to produce a filtered inbound RF signal; and
compensate the loss error of the filtered inbound RF signal based on a negative resistance to produce a compensated inbound RF signal;
a low noise amplifier module operable to amplify the compensated inbound RF signal to produce an amplified inbound RF signal;
a mixing section operable to mix the amplified inbound RF signal with a local oscillation to produce an inbound IF signal; and
a receiver IF to baseband section operable to convert the inbound IF signal into one or more inbound symbol streams.
4 Assignments
0 Petitions
Accused Products
Abstract
A SAW-less receiver includes an FEM interface module, an RF to IF receiver section, and a receiver IF to baseband section. The RF to IF receiver section includes an RF frequency translated bandpass filter (FTBPF), an LNA, and a mixing section. The RF FTBPF frequency translates a baseband filter response to an RF filter response and filters an inbound RF signal in accordance with the RF filter response, wherein the inbound RF signal includes a loss error due to switching loss and/or inductor loss. The RF FTBPF also compensates the loss error based on a negative resistance. The LNA amplifies the compensated inbound RF signal and the mixing section mixes the amplified inbound RF signal with a local oscillation to produce an inbound IF signal. The receiver IF to baseband section converts the inbound IF signal into one or more inbound symbol streams.
13 Citations
17 Claims
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1. A surface acoustic wave (SAW)-less receiver comprises:
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a front end module (FEM) interface module operable to receive an inbound radio frequency (RF) signal that includes a loss error due to at least one of switching loss and inductor loss; a radio frequency (RF) to intermediate frequency (IF) receiver section including; an RF frequency translated bandpass filter (FTBPF) operable to; frequency translate a baseband filter response to an RF filter response; filter the inbound RF signal in accordance with the RF filter response to produce a filtered inbound RF signal; and compensate the loss error of the filtered inbound RF signal based on a negative resistance to produce a compensated inbound RF signal; a low noise amplifier module operable to amplify the compensated inbound RF signal to produce an amplified inbound RF signal; a mixing section operable to mix the amplified inbound RF signal with a local oscillation to produce an inbound IF signal; and a receiver IF to baseband section operable to convert the inbound IF signal into one or more inbound symbol streams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A radio frequency (RF) to intermediate frequency (IF) receiver section comprises:
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an RF frequency translated bandpass filter (FTBPF) operable to; frequency translate a baseband filter response to an RF filter response; filter an inbound RF signal in accordance with the RF filter response to produce a filtered inbound RF signal; and compensate a loss error of the filtered inbound RF signal based on a negative resistance to produce a compensated inbound RF signal; a low noise amplifier module operable to amplify the compensated inbound RF signal to produce an amplified inbound RF signal; and a mixing section operable to mix the amplified inbound RF signal with a local oscillation to produce an inbound IF signal. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification