Method and apparatus for adjacent band RF signal reception

Patent metadata

Field	Value
Publication number	US-10511335-B2
Application number	US-201715600002-A
Country	US
Kind code	B2
Filing date	May 19, 2017
Priority date	May 19, 2017
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

A signal processing apparatus for simultaneously receiving and processing a satellite signal and a WCS signal. The system and method is operative to receive the signals, amplify and bandwidth covering both signals, splitting the amplified signal into a first and second portions, filtering the first portion to reduce the WCS signal, amplifying the first portion to amplify the satellite signal in the first portion, and processing the satellite signal in the first portion. The system and method is further operative to processing the WCS signal in the second portion.

First claim

What is claimed is:

1. A method comprising:
receiving a first signal and a second signal via a first antenna;
amplifying the first signal and the second signal using a first amplifier;
coupling a first portion of the first signal and the second signal to a filter wherein the filter is operative to reduce the amplitude of the second signal to generate a first filtered signal, wherein the coupling is performed by a radio frequency coupler, wherein the radio frequency coupler is a 4 port radio frequency device;
amplifying the first filtered signal to generate an amplified first filtered signal using a second amplifier;
processing the amplified first filtered signal to generate a first data signal; and
coupling a second portion of the first signal and the second signal and processing the second portion to generate a second data signal.

2. The method of claim 1 wherein the second signal is a higher powered signal and the first signal is a lower powered signal.

3. The method of claim 1 wherein the bandwidth of the first signal partially overlaps the bandwidth of the second signal.

4. The method of claim 1 wherein the first signal and the second signal are adjacent channel signals.

5. The method of claim 1 wherein the first signal is a satellite signal and the second signal is a wireless communications service signal.

6. The method of claim 1 wherein the first signal has a higher amplitude than the second signal.

7. The method of claim 1 wherein further comprising filtering the amplified first filtered signal using a bandpass filter with a center frequency and frequency bandwidth corresponding to those of the first signal.

8. A signal processing apparatus comprising:
an input for receiving a first signal and a second signal;
a first amplifier for amplifying the first signal and the second signal;
a signal coupler for decoupling a first portion of the first signal and the second signal to generate a first decoupled signal and a second portion of the first signal and the second signal second to generate a second decoupled signal, wherein the signal coupler is a 4 port radio frequency device;
a filter to filter the first decoupled signal to reduce the amplitude of the portion of the second signal to generate a first filtered signal;
an amplifier for amplifying the first filtered signal to generate an amplified first filtered signal;
a first processor for processing the amplified first filtered signal to generate a first data signal; and
a second processor for processing the second decoupled signal to generate a second data signal.

9. The signal processing apparatus of claim 8 wherein the second signal is a higher powered signal and the first signal is a lower powered signal.

10. The signal processing apparatus of claim 8 wherein the bandwidth of the first signal partially overlaps the bandwidth of the second signal.

11. The signal processing apparatus of claim 8 wherein the first signal and the second signal are adjacent channel signals.

12. The signal processing apparatus of claim 8 wherein the first signal is a satellite signal and the second signal is a wireless communications service signal.

13. The signal processing apparatus of claim 8 wherein the first decoupled signal has a greater amplitude than the second decoupled signal.

14. The signal processing apparatus of claim 8 comprising a notch filter having a center frequency and frequency bandwidth corresponding to those of the first decoupled signal.

15. An apparatus comprising:
an antenna for receiving a satellite signal and a wireless communications signal;
an first amplifier for amplifying the satellite signal and the wireless communications signal;
a coupler for decoupling a first portion of the satellite signal and a first portion of the wireless communications signal to form a first signal, from a second portion of the satellite signal and a second portion of the wireless communications signal wherein the second portion of the satellite signal and the second portion of the wireless signal form a second signal, wherein the coupler is a 4 port radio frequency device;
a filter for filtering the first signal in order to reduce an amplitude of the first portion of the wireless communications signal;
a second amplifier for amplifying the first signal in order to increase the amplitude of the first portion of the satellite signal,
a first processor for processing the first portion of the satellite signal to generate a first data signal; and
a second processor for processing the second portion of the wireless communications signal to generate a second data signal.

16. The apparatus of claim 15 wherein the bandwidth of the satellite signal partially overlaps the bandwidth of the wireless communications signal.

17. The apparatus of claim 15 wherein the bandwidth of the satellite signal is adjacent with the bandwidth of the wireless communications signal.

18. The apparatus of claim 15 wherein the wireless communications signal has a greater amplitude than the satellite signal.

19. The apparatus of claim 15 wherein the antenna is a patch antenna.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Talty Timothy J
• Carper Duane S
• Yasan Eray
• George David M
• Schaffner James H
• Song Hyok Jae
• Wall Walter S

Classifications

• H04B1/0053 Primary

  with common antenna for more than one band · CPC title

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title