RF redirection module and system incorporating the RF redirection module
An RF redirection module incorporated into an RF system already having a receive antenna and a first transmit antenna allows the RF system to be coupled to a second transmit antenna and to provide a transmit signal to the second transmit antenna.
1. An RF redirection module, comprising:
a first bidirectional input/output port configured to receive an RF receive signal or to output an RF transmit signal;
a second bidirectional input/output port configured to output the RF receive signal or to input the RF transmit signal;
an RF output port configured to output a signal representative of the RF transmit signal; and
a control port coupled to receive a control signal, wherein, in response to the control signal, the RF redirection module is configured either:
a) to receive the RF receive signal at the first bidirectional input/output port, to output the RF receive signal at the second bidirectional input/output port, and to output no signal at the RF output port,
b) to receive the RF transmit signal at the second bidirectional input/output port, to output the signal representative of the RF transmit signal at the RF output port, and to input or output no signal at the first bidirectional input/output port, or
c) to receive the RF transmit signal at the second bidirectional input/output port, to output the RF transmit signal at the first bidirectional input/output port, and to output no signal at the RF output port,
wherein the first bidirectional input/output port is configured to couple to an RF distribution module and wherein the second bidirectional input/output port is configured to couple to a receiver-exciter module so that the RF redirection module is coupled between the RF distribution module and the receiver-exciter module.
2. The RF redirection module of claim 1 , further comprising:
a first RF switch having a pole terminal and first and second throw terminals, wherein the pole terminal of the first RF switch is coupled to the first bidirectional input/output port; and
a second RF switch having a pole terminal and first and second throw terminals, wherein the pole terminal of the second RF switch is coupled to the second bidirectional input/output port.
3. The RF redirection module of claim 1 , wherein the first throw terminal of the first RF switch is coupled to the first throw terminal of the second RF switch.
4. The RF redirection module of claim 1 , further comprising:
an RF transmit amplifier coupled to the second throw terminal of the second RF switch.
5. The RF redirection module of claim 4 , further comprising:
a power control circuit coupled to receive the control signal and configured generate a DC power signal to power the RF transmit amplifier.
6. The RF redirection module of claim 1 , wherein the RF distribution module is configured to couple to a receive antenna and to a first transmit antenna.
7. The RF redirection module of claim 6 , wherein the RF output port is configured to couple to a second transmit antenna.
8. The RF redirection module of claim 1 , wherein the RF output port is configured to couple to a transmit antenna.
9. The RF redirection module of claim 1 , wherein the RF receive signal is representative of a signal emitted by a remote RF transmitter.
10. The RF redirection module of claim 9 , wherein the RF transmit signal has characteristics calculated to interfere with the signal emitted by the remote RF transmitter.
11. The RF redirection module of claim 10 , wherein the RF transmit signal comprises at least one of a continuous wave (CW) type of signal, an amplitude modulated (AM) type of signal modulated by an analog or a digital baseband signal, a frequency modulated (FM) type of signal modulated by an analog or a digital baseband signal, or a phase modulated (PM) type of signal modulated by a digital baseband signal.
12. The RF redirection module of claim 1 , wherein the RF transmit signal has characteristics calculated to interfere with a signal emitted by a remote RF transmitter.
13. The RF redirection module of claim 12 , wherein the RF transmit signal comprises at least one of a continuous wave (CW) type of signal, an amplitude modulated (AM) type of signal modulated by an analog or a digital baseband signal, a frequency modulated (FM) type of signal modulated by an analog or a digital baseband signal, or a phase modulated (PM) type of signal modulated by a digital baseband signal.