Patent ID: 6870513

Claim:
A circuit module for wireless signal transmitting and receiving, comprising: a circuit board; a main function chip disposed on the circuit board, the main function chip comprising: a differential power amplifier disposed on the circuit board, wherein the differential power amplifier has a positive output terminal and a negative output terminal, and the positive output terminal and the negative output terminal form a differential pair providing output differential signals to be radiated; and a differential low noise amplifier disposed on the circuit board, wherein the differential low noise amplifier has a positive input terminal and a negative input terminal, and the positive input terminal and the negative input terminal form a differential pair; a transmitting dipole antenna, formed on the circuit board and coupled to the differential power amplifier, the transmitting dipole antenna comprising: a first electrode formed on the circuit board and coupled to the positive output terminal; and a second electrode formed on the circuit board and coupled to the negative output terminal, wherein the output differential signals are radiated from the first and second electrodes; and a receiving dipole antenna, formed on the circuit board and coupled to the differential low noise amplifier, the receiving dipole antenna comprising: a third electrode formed on the circuit board and coupled to the positive input terminal; and a fourth electrode formed on the circuit board and coupled to the negative input terminal, wherein a wireless signal is received by the receiving dipole antenna in the form of differential signals at the third and fourth electrodes respectively and the differential signals are fed into the positive and negative input terminals of the differential low noise amplifier.