Wideband RF ICs for Power Detection and Control for LTC5509 Dual Band Mobile Phone Transmit Power Control Using a Resistive Tap

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Wideband RF ICs for Power Detection and Control for LTC5509 Dual Band Mobile Phone Transmit Power Control Using a Resistive Tap
Wideband RF ICs for Power Detection and Control for LTC5509 Dual Band Mobile Phone Transmit Power Control Using a Resistive Tap. In this reference design, 324W, 1% tolerance resistor (R1) followed by a 2.2pF capacitor (C1) form a coupling circuit with 18dB to 20dB coupling factor at 850MHz to 1850MHz, referenced to the LTC5509 RF input pin