An apparatus comprising: an amplifier circuit having a phase shift, wherein the amplifier circuit is configured to amplify a signal for wireless transmission; an input circuit to the amplifier circuit comprising a first resistor (R1), a first inductor (L1), and a first capacitor (Cin), wherein the input circuit is configured to couple the signal through the first capacitor (Cin), the first resistor (R1), and the first inductor (L1) to input the signal to the amplifier circuit; and a feedback circuit coupled to the amplifier circuit, the feedback circuit comprising a second capacitor (Cfb), a second resistor (R2), and a second inductor (L2), wherein: the feedback circuit is configured to couple the signal through the second inductor (L2), the second capacitor (Cfb), and a second resistor (R2), feedback components of the feedback circuit are selected based on a feedback factor, wherein said feedback factor is based on a ratio of the first resistor (R1) to the sum of the first resistor (R1) and the second resistor (R2), the feedback factor indicates that the feedback components of the feedback circuit have a same impedance characteristic as an input impedance of input components of the input circuit , and the feedback factor indicates a total phase shift of the signal, comprised of the sum of the phase shift for the amplifier circuit and the feedback circuit, is less than a threshold. an amplifier circuit having a phase shift, wherein the amplifier circuit is configured to amplify a signal for wireless transmission; an input circuit to the amplifier circuit comprising a first resistor (R1), a first inductor (L1), and a first capacitor (Cin), wherein the input circuit is configured to couple the signal through the first capacitor (Cin), the first resistor (R1), and the first inductor (L1) to input the signal to the amplifier circuit; and a feedback circuit coupled to the amplifier circuit, the feedback circuit comprising a second capacitor (Cfb), a second resistor (R2), and a second inductor (L2), wherein: the feedback circuit is configured to couple the signal through the second inductor (L2), the second capacitor (Cfb), and a second resistor (R2), feedback components of the feedback circuit are selected based on a feedback factor, wherein said feedback factor is based on a ratio of the first resistor (R1) to the sum of the first resistor (R1) and the second resistor (R2), the feedback factor indicates that the feedback components of the feedback circuit have a same impedance characteristic as an input impedance of input components of the input circuit , and the feedback factor indicates a total phase shift of the signal, comprised of the sum of the phase shift for the amplifier circuit and the feedback circuit, is less than a threshold. the feedback circuit is configured to couple the signal through the second inductor (L2), the second capacitor (Cfb), and a second resistor (R2), feedback components of the feedback circuit are selected based on a feedback factor, wherein said feedback factor is based on a ratio of the first resistor (R1) to the sum of the first resistor (R1) and the second resistor (R2), the feedback factor indicates that the feedback components of the feedback circuit have a same impedance characteristic as an input impedance of input components of the input circuit , and the feedback factor indicates a total phase shift of the signal, comprised of the sum of the phase shift for the amplifier circuit and the feedback circuit, is less than a threshold. <EOS>