Abstract: A hybrid RF transceiver circuit comprises a first matching network, a second matching network, a first power amplifier, a second power amplifier, and a low noise amplifier. The second matching network is coupled to the first matching network and an antenna. An output port of the first power amplifier is coupled to the first matching network and the second matching network. The output port of the second power amplifier is coupled to the first matching network. The input port of the low noise amplifier is coupled to the second power amplifier and the first matching network. The output port of the low noise amplifier is coupled to a receiver circuit.

Abstract: A hybrid RF transceiver circuit comprises a first matching network, a second matching network, a first power amplifier, a second power amplifier, and a low noise amplifier. The second matching network is coupled to the first matching network and an antenna. An output port of the first power amplifier is coupled to the first matching network and the second matching network. The output port of the second power amplifier is coupled to the first matching network. The input port of the low noise amplifier is coupled to the second power amplifier and the first matching network. The output port of the low noise amplifier is coupled to a receiver circuit.

Abstract: An inductor equipped with imbalanced magnetic-cancelling (IMC) architecture and an associated apparatus are provided. The inductor may include a first terminal, a second terminal, and a plurality of partial wirings coupled between the first terminal and the second terminal. The plurality of partial wirings may include a first set of partial wirings coupled in series and coupled to the first terminal, a second set of partial wirings coupled in series and coupled to the second terminal, and a third set of partial wirings coupled in series and coupled between the first set of partial wirings and the second set of partial wirings. Additionally, a second area enclosed by the first set of partial wirings and the second set of partial wirings is different from a first area enclosed by the third set of partial wirings, to provide the inductor with the IMC architecture.

Abstract: A transformer includes a first planar coil having two input ends, with a distance being between the two input ends; and a second planar coil, having two output ends. The two input ends correspond to two points on relative positions of the second planar coil, and a coil path distance of the two points on the second planar coil is equal to the distance.

Abstract: A transconductor circuit used in a mixer for canceling second-order inter-modulation distortion includes a first transistor and a second transistor, of which the base (gate) ends coupled to a first input end and a second input end, for receiving a differential input signal; and a negative feedback circuit, of which the input end coupled to the emitter (source) ends of the first transistor and the second transistor, of which the out end coupled to the base (gate) ends of the first transistor and the second transistor, for adjusting the voltage of the base (gate) of the first transistor and the second transistor according to the difference between a reference voltage and the detected voltage of the emitter (source) of the first transistor and the second transistor.

Abstract: A transconductor circuit used in a mixer for canceling second-order inter-modulation distortion includes a first transistor and a second transistor, of which the base (gate) ends coupled to a first input end and a second input end, for receiving a differential input signal; and a negative feedback circuit, of which the input end coupled to the emitter (source) ends of the first transistor and the second transistor, of which the out end coupled to the base (gate) ends of the first transistor and the second transistor, for adjusting the voltage of the base (gate) of the first transistor and the second transistor according to the difference between a reference voltage and the detected voltage of the emitter (source) of the first transistor and the second transistor.

Abstract: A transformer includes a first planar coil having two input ends, with a distance being between the two input ends; and a second planar coil, having two output ends. The two input ends correspond to two points on relative positions of the second planar coil, and a coil path distance of the two points on the second planar coil is equal to the distance.