Wide bandwidth transceiver

• US 7,120,405 B2
• Filed: 11/27/2002
• Issued: 10/10/2006
• Est. Priority Date: 11/27/2002
• Status: Expired due to Fees

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Rofougaran, Ahmadreza (Reza)
• Primary Examiner(s): Anderson, Matthew D.
• Assistant Examiner(s): Yun, Eugene
• Application Number:
  US10/306,047
• Publication Number:
  US 20040102161A1
• Time in Patent Office: 1,413 Days
• Field of Search: 455/142, 455/168.1, 455/75, 455/133, 455/150.1, 455/78, 455/552.1, 455/41.2, 455/73
• US Class Current: 455/168.1
• CPC Class Codes: H04B 1/28 the receiver comprising at least one semiconductor device having three or more electrodes
• CPC Class Codes: H04B 1/405 with multiple discrete channels

Abstract

The wide bandwidth transceiver includes a receiver section, a transmitter section, and a local oscillation module. The receiver section includes a 1^st receiver intermediate frequency (IF) stage, a receiver switch module, and a 2^nd receiver IF stage. The 1^st receiver IF stage is operably coupled to convert a 1^st inbound radio frequency (RF) signal into a 1^st inbound IF signal based on a 1^st local oscillation of the local oscillation module. The receiver switch module passes either the 1^st inbound IF signal or a 2^nd inbound RF signal, which have similar carrier frequencies, to the 2^nd receiver IF stage. The 2^nd receiver IF stage receives the selected signal from the receiver switch module and based on a 2^nd local oscillation converts the selected signal into a low intermediate frequency signal. The transmitter section includes a 1^st transmitter intermediate frequency (IF) stage, a 2^nd transmitter IF stage, a power amplifier and a transmitter switch module. The 1^st transmitter IF stage is operably coupled to convert an outbound low IF signal into a 1^st outbound radio frequency (RF) signal based on the 2^nd oscillation. The 2^nd transmitter IF stage, when operably coupled, converts the 1^st outbound RF signal into a 2^nd outbound RF signal based on the 1^st local oscillation. The transmitter switching module couples either the 1^st outbound RF signal or the 2^nd outbound RF signal to the power amplifier.

Claims

1. A wide bandwidth transceiver comprises:

receiver section that includes;

first receiver intermediate frequency (IF) stage operably coupled to convert a first inbound radio frequency (RF) signal into a first inbound IF signal based on a first local oscillation;

receiver switching module operably coupled to pass one of the first inbound IF signal and a second inbound RF signal to produce a selected inbound signal, wherein frequency of the second inbound RF signal is substantially equal to the first inbound IF signal and wherein the frequency of the second inbound RF signal is less than frequency of the first inbound RF signal; and

second receiver IF stage operably coupled to convert the selected inbound signal into an inbound low IF signal based on a second location oscillation;

transmitter section that includes;

first transmitter IF stage operably coupled to convert an outbound low IF signal into a first outbound RF signal based on the second local oscillation;

second transmitter IF stage, when operably coupled, converts the first outbound RF signal into a second outbound RF signal based on the first location oscillation;

power amplifier operably coupled to amplifier a selected outbound RF signal; and

transmitter switching module operably coupled to provide one of the first outbound RF signal and the second outbound RF signal to the power amplifier as the selected outbound RF signal;

local oscillation module operably coupled to produce the first and second local oscillations.

2. The wide bandwidth transceiver of claim 1, wherein the first receiver IF stage further comprises:

first mixer operably coupled to mix an in-phase component of the first inbound RF signal with an in-phase component of the first local oscillation to produce an in-phase mixed signal;

second mixer operably coupled to mix a quadrature component of the first inbound RF signal with a quadrature component of the first local oscillation to produce a quadrature mixed signal; and

filter module operably coupled to filter the in-phase mixed signal and the quadrature mixed signal to produce the first inbound IF signal.

3. The wide bandwidth transceiver of claim 1, wherein the receiver switching module further comprises at least one of:

a multiplexer;

switch network; and

tri-state input buffer network.

4. The wide bandwidth transceiver of claim 1, wherein the second receiver IF stage further comprises:

first mixer operably coupled to mix an in-phase component of the selected inbound signal with an in-phase component of the second local oscillation to produce an in-phase mixed signal;

second mixer operably coupled to mix a quadrature component of the selected inbound signal with a quadrature component of the second local oscillation to produce a quadrature mixed signal; and

filter module operably coupled to filter the in-phase mixed signal and the quadrature mixed signal to produce the inbound low IF signal.

5. The wide bandwidth transceiver of claim 1, wherein the first transmitter IF stage further comprises:

first mixer operably coupled to mix an in-phase component of the outbound low IF signal with an in-phase component of the second local oscillation to produce an in-phase mixed signal;

second mixer operably coupled to mix a quadrature component of the outbound low IF signal with a quadrature component of the second local oscillation to produce a quadrature mixed signal;

summing module operably coupled to sum the in-phase mixed signal and the quadrature mixed signal to produce a summed signal; and

filter module operably coupled to filter the summed signal to produce the first outbound RF signal.

6. The wide bandwidth transceiver of claim 1, wherein the second transmitter IF stage further comprises:

first mixer operably coupled to mix an in-phase component of the first outbound RF signal with an in-phase component of the first local oscillation to produce an in-phase mixed signal;

second mixer operably coupled to mix a quadrature component of the first outbound RF signal with a quadrature component of the first local oscillation to produce a quadrature mixed signal;

summing module operably coupled to sum the in-phase mixed signal and the quadrature mixed signal to produce a summed signal; and

filter module operably coupled to filter the summed signal to produce the second outbound RF signal.

7. The wide bandwidth transceiver of claim 1, wherein the transmitter switching module further comprises at least one of:

a multiplexer;

switch network; and

tri-state input buffer network.

8. The wide bandwidth transceiver of claim 1, wherein the location oscillation module further comprises:

a local oscillation generator operably coupled to produce a reference oscillation;

first oscillation module operably coupled to produce the first local oscillation from the reference oscillation; and

second oscillation module operably coupled to produce the second local oscillation from the reference oscillation.

9. The wide bandwidth transceiver of claim 1 further comprises:

control module operably coupled to enable the receiver switch module to pass the first inbound IF signal or the second inbound IF signal and to enable the transmitter switch to provide the first outbound RF signal or the second outbound RF signal.

10. The wide bandwidth transceiver of claim 1, wherein the receiver section further comprises:

first low noise amplifier operably coupled to receive the first inbound RF signal and operably coupled to the first receiver IF stage; and

second low noise amplifier operably coupled to the receive the second inbound RF signal and operably coupled to the receiver switch module.

11. The wide bandwidth transceiver of claim 1 further comprises:

the receiver section including;

third receiver IF stage operably coupled to convert a third inbound radio frequency (RF) signal into a third inbound IF signal based on a third local oscillation; and

second receiver switching module operably coupled to pass one of the first inbound RF signal and a third inbound RF signal to first IF stage as the first inbound RF signal, wherein frequency of the third inbound RF signal is substantially equal to the first inbound RF signal;

the transmitter section including;

third transmitter IF stage, when operably coupled, converts the second outbound RF signal into a third outbound RF signal based on a third location oscillation; and

the transmitter switching module operably coupled to provide one of the first outbound RF signal, the second outbound RF signal, and the third outbound RF signal to the power amplifier as the selected outbound RF signal.

12. The wide bandwidth receiver of claim 1, wherein the receiver switching module further comprises at least one of:

a multiplexer;

switch network; and

tri-state input buffer network.

13. The wide bandwidth transmitter of claim 1 further comprises:

control module operably coupled to enable the transmitter switch to provide the first outbound RF signal or the second outbound RF signal.

14. A wide bandwidth receiver comprises:

first receiver intermediate frequency (IF) stage operably coupled to convert a first inbound radio frequency (RF) signal into a first inbound IF signal based on a first local oscillation;

receiver switching module operably coupled to pass one of the first inbound IF signal and a second inbound RF signal to produce a selected inbound signal, wherein frequency of the second inbound RF signal is substantially equal to the first inbound IF signal and wherein the frequency of the second inbound RF signal is less than frequency of the first inbound RF signal;

second receiver IF stage operably coupled to convert the selected inbound signal into an inbound low IF signal based on a second location oscillation and

local oscillation module operably coupled to produce the first and second local oscillations.

15. The wide bandwidth receiver of claim 14, wherein the first receiver IF stage further comprises:

first mixer operably coupled to mix an in-phase component of the first inbound RF signal with an in-phase component of the first local oscillation to produce an in-phase mixed signal;

second mixer operably coupled to mix a quadrature component of the first inbound RF signal with a quadrature component of the first local oscillation to produce a quadrature mixed signal; and

filter module operably coupled to filter the in-phase mixed signal and the quadrature mixed signal to produce the first inbound IF signal.

16. The wide bandwidth receiver of claim 14, wherein the second receiver IF stage further comprises:

first mixer operably coupled to mix an in-phase component of the selected inbound signal with an in-phase component of the second local oscillation to produce an in-phase mixed signal;

second mixer operably coupled to mix a quadrature component of the selected inbound signal with a quadrature component of the second local oscillation to produce a quadrature mixed signal; and

filter module operably coupled to filter the in-phase mixed signal and the quadrature mixed signal to produce the inbound low IF signal.

17. The wide bandwidth receiver of claim 14, wherein the location oscillation module further comprises:

a local oscillation generator operably coupled to produce a reference oscillation;

first oscillation module operably coupled to produce the first local oscillation from the reference oscillation; and

second oscillation module operably coupled to produce the second local oscillation from the reference oscillation.

18. The wide bandwidth receiver of claim 14 further comprises:

control module operably coupled to enable the receiver switch module to pass the first inbound IF signal or the second inbound IF signal.

19. The wide bandwidth receiver of claim 14 further comprises:

first low noise amplifier operably coupled to receive the first inbound RF signal and operably coupled to the first receiver IF stage; and

second low noise amplifier operably coupled to the receive the second inbound RF signal and operably coupled to the receiver switch module.

20. The wide bandwidth receiver of claim 14 further comprises:

third receiver IF stage operably coupled to convert a third inbound radio frequency (RF) signal into a third inbound IF signal based on a third local oscillation; and

second receiver switching module operably coupled to pass one of the first inbound RF signal and a third inbound RF signal to first IF stage as the first inbound RF signal, wherein frequency of the third inbound RF signal is substantially equal to the first inbound RF signal.

21. A wide bandwidth transmitter comprises:

first transmitter IF stage operably coupled to convert an outbound low IF signal into a first outbound RF signal based on the second local oscillation;

second transmitter IF stage, when operably coupled, converts the first outbound RF signal into a second outbound RF signal based on the first location oscillation;

power amplifier operably coupled to amplifier a selected outbound RF signal;

transmitter switching module operably coupled to provide one of the first outbound RF signal and the second outbound RF signal to the power amplifier as the selected outbound RF signal; and

local oscillation module operably coupled to produce the first and second local oscillations.

22. The wide bandwidth transmitter of claim 21, wherein the first transmitter IF stage further comprises:

first mixer operably coupled to mix an in-phase component of the outbound low IF signal with an in-phase component of the second local oscillation to produce an in-phase mixed signal;

second mixer operably coupled to mix a quadrature component of the outbound low IF signal with a quadrature component of the second local oscillation to produce a quadrature mixed signal;

summing module operably coupled to sum the in-phase mixed signal and the quadrature mixed signal to produce a summed signal; and

filter module operably coupled to filter the summed signal to produce the first outbound RF signal.

23. The wide bandwidth transmitter of claim 21, wherein the second transmitter IF stage further comprises:

first mixer operably coupled to mix an in-phase component of the first outbound RF signal with an in-phase component of the first local oscillation to produce an in-phase mixed signal;

second mixer operably coupled to mix a quadrature component of the first outbound RF signal with a quadrature component of the first local oscillation to produce a quadrature mixed signal;

summing module operably coupled to sum the in-phase mixed signal and the quadrature mixed signal to produce a summed signal; and

filter module operably coupled to filter the summed signal to produce the second outbound RF signal.

24. The wide bandwidth transmitter of claim 21, wherein the transmitter switching module further comprises at least one of:

a multiplexer;

switch network; and

tri-state input buffer network.

25. The wide bandwidth transmitter of claim 21, wherein the location oscillation module further comprises:

a local oscillation generator operably coupled to produce a reference oscillation;

first oscillation module operably coupled to produce the first local oscillation from the reference oscillation; and

second oscillation module operably coupled to produce the second local oscillation from the reference oscillation.

26. The wide bandwidth transmitter of claim 21 further comprises:

third transmitter IF stage, when operably coupled, converts the second outbound RF signal into a third outbound RF signal based on a third location oscillation; and

the transmitter switching module operably coupled to provide one of the first outbound RF signal, the second outbound RF signal, and the third outbound RF signal to the power amplifier as the selected outbound RF signal.