Patent ID: 8725093
Filing Date: 2014-05-13
Classification: H04B

Abstract:
1. A multi-mode full frequency band radio frequency transmission device comprising a radio frequency main amplifier chip and a control chip inside the device, wherein the device further comprises a radio frequency switch chip positioned in the latter stage of the radio frequency main amplifier chip and configured to integrate all solid switch elements, each of the solid switch elements comprises a transfer switch used when values of a variable capacitor and a variable inductor are controlled; and the variable capacitor and the variable inductor are configured to control values of passive elements in an input switch matching circuit/output switch matching circuit to implement a single input/output matching circuit; wherein the device further comprises pins external to the device, and the structure of the pins is adapted to the internal structure of the device; and the pins include the following pin types: pin type 1: pin of a unified input of radio frequency signals; pin type 2: pin of a power supply of the radio frequency transmission device; pin type 3: pin for switching between a transmitting mode and a receiving mode; pin type 4: pin of an analog power control input; pin type 5: pin composing logic control bits in a selected radio frequency band; pin type 6: pin of a receiving end of radio frequency signals; pin type 7: pin of a common port; pin type 8: pin of a radio frequency connecting antenna port.