RF TRANSCEIVER WITH ISOLATION TRANSFORMER AND METHODS FOR USE THEREWITH
A radio frequency (RF) transceiver includes an RF transmitter that generates a transmit signal based on outbound data for transmission to a remote communication device in a frequency band. An RF receiver generates inbound data based on a received signal from the remote communication device in the frequency band. An antenna section includes a shared antenna configurable for full-duplex transceiving of the transmit signal and the received signal and a center-tap isolation transformer configurable to isolate the transmit signal from the received signal.
1 . A radio frequency (RF) transceiver comprising:
an RF transmitter configured to generate a transmit signal based on outbound data for transmission to a remote communication device in a frequency band;
an RF receiver, coupled to the antenna array, configured to generate inbound data based on a received signal from the remote communication device in the frequency band; and
an antenna section, coupled to the RF transmitter and the RF receiver, includes a shared antenna configurable for full-duplex transceiving of the transmit signal and the received signal and further includes a center-tap isolation transformer configurable to isolate the transmit signal from the received signal.
2 . The RF transceiver of claim 1 wherein the received signal and the transmit signal utilize overlapping portions of the frequency band.
3 . The RF transceiver of claim 1 wherein the center-tap isolation transformer comprising a first winding with a center tap and wherein the RF transmitter couples the transmit signal to the center tap.
4 . The RF transceiver of claim 3 wherein the first winding is further coupled to the shared antenna.
5 . The RF transceiver of claim 4 wherein the center-tap isolation transformer comprising a second winding and wherein the RF receiver receives the received signal via the second winding.
6 . The RF transceiver of claim 3 wherein the first winding is further coupled to select the shared antenna as one of a plurality of antennas.
7 . The RF transceiver of claim 6 wherein the plurality of antennas comprising a plurality of different polarizations.
8 . The RF transceiver of claim 1 further comprising:
a reflection estimation module, coupled to the RF transmitter, configurable to generate an estimated reflection signal that estimates a reflection of the transmit signal received by the shared antenna; and
a reflection cancellation, coupled to the RF receiver, configurable to cancel the reflection of the transmit signal from a receive path of the RF receiver.
9 . The RF transceiver of claim 8 wherein the reflection estimation module generates the estimated reflection signal based on an upconverted signal from a transmit path of the RF transmitter.
10 . The RF transceiver of claim 8 wherein the reflection estimation module estimates the reflection of the transmit signal based on an amplitude and a delay from an upconverted signal of a transmit path of the RF transmitter.
11 . A radio frequency (RF) transceiver comprising:
an RF transmitter configured to generate a transmit signal based on outbound data for transmission to a remote communication device in a frequency band;
an RF receiver, coupled to the antenna array, configured to generate inbound data based on a received signal from the remote communication device in the frequency band; and
an antenna section, coupled to the RF transmitter and the RF receiver, is configurable to select a shared antenna as one of a plurality of antennas, is configurable for full-duplex transceiving of the transmit signal and the received signal and includes a center-tap isolation transformer configurable to isolate the transmit signal from the received signal.
12 . The RF transceiver of claim 11 wherein the received signal and the transmit signal utilize overlapping portions of the frequency band.
13 . The RF transceiver of claim 11 wherein the center-tap isolation transformer comprising a first winding with a center tap and wherein the RF transmitter couples the transmit signal to the center tap.
14 . The RF transceiver of claim 13 wherein the first winding is further coupled to the shared antenna.
15 . The RF transceiver of claim 14 wherein the center-tap isolation transformer comprising a second winding and wherein the RF receiver receives the received signal via the second winding.
16 . The RF transceiver of claim 11 wherein the plurality of antennas have a plurality of different polarizations.
17 . The RF transceiver of claim 11 further comprising:
a reflection estimation module, coupled to the RF transmitter, configurable to generate an estimated reflection signal that estimates a reflection of the transmit signal received by the shared antenna; and
a reflection cancellation, coupled to the RF receiver, configurable to cancel the reflection of the transmit signal from a receive path of the RF receiver.
18 . The RF transceiver of claim 17 wherein the reflection estimation module generates the estimated reflection signal based on an upconverted signal from a transmit path of the RF transmitter.
19 . The RF transceiver of claim 17 wherein the reflection estimation module estimates the reflection of the transmit signal based on an amplitude and a delay from an upconverted signal of a transmit path of the RF transmitter.
20 . A method for use in a radio frequency (RF) transceiver, the method comprising:
generating, via an RF transmitter, a transmit signal based on outbound data for transmission to a remote communication device in a frequency band;
generating, via an RF receiver, inbound data based on a received signal from the remote communication device in the frequency band; and
coupling an antenna section to the RF transmitter and the RF receiver, the antenna section including a shared antenna configurable for full-duplex transceiving of the transmit signal and the received signal and a center-tap isolation transformer configurable to isolate the transmit signal from the received signal;
wherein the received signal and the transmit signal utilize overlapping portions of the frequency band.