Novel Wilkinson power divider capable of achieving termination with complex impedance

Abstract

The invention relates to a novel Wilkinson power divider capable of achieving termination with complex impedance, which comprises a first microstrip line TL1, a second microstrip line TL2, a third microstrip line TL3, a fourth microstrip line TL4, an input end P1, a first output end P2, a second output end P3 and an isolation circuit 100, wherein the first microstrip line TL1 is serially connectedbetween the input end P1 and the first output end P2; the second microstrip line TL2 is serially connected between the input end P1 and the second output end P3; and the third microstrip line TL3, the isolation circuit 100 and the fourth microstrip line TL4 are serially connected between the first output end P2 and the second output end P3. Thus, the input and output ends of the power divider canbe directly connected to the complex impedance without causing impedance mismatch, and power distribution requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of microwave transmission, and in particular relates to a novel Wilkinson power divider capable of terminating complex impedances. Background technique [0002] The Wilkinson power divider is a passive circuit that divides a channel of RF signal into N channels of RF signals with the same amplitude and the same phase. Because of its simple structure, low design complexity and low process realization difficulty, it is widely used in a series of radio frequency and microwave circuits such as power amplifiers, frequency mixers, and frequency multipliers. In the front stage of the circuit, a Wilkinson power divider is used to divide one signal into multiple signals. After these signals are amplified by the intermediate stage amplifier, they are synthesized by the Wilkinson power divider at the output stage of the circuit, which can effectively improve the output power of the circuit. [0003] The traditional Wi...

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Problems solved by technology

However, this power divider does not solve the problem that the distance between the microstrip lines at the output end of the traditional power divider is too small, so this power divider still has certain defects

[0005] However, in the above technical solution, the input and output ports of the power divider can only be connected to real impedances, and do not have the function of performing complex impedance conversion.

Therefore, how to deal with the problem that the distance between the output ports of the traditional Wilkinson power divider is too small, and at the same time make it have the function of complex impedance transformation has become a hot issue in current research

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