Frequency divider based on mems broadband phase detector and temperature compensation resistor

Abstract

The invention discloses a frequency divider based on an MEMS (Micro-Electro-Mechanical-System) broadband phase detector and a temperature compensation resistor. The frequency divider comprises an MEMS broadband phase detector, a temperature compensation resistor R, a DC automatic gain control AGC amplifier, a first voltage-controlled oscillator VCO1, a second voltage-controlled oscillator VCO2, a first variable resistor R1, a second variable resistor R2 and a multiplying unit. The frequency divider has the beneficial effects that the frequency divider has broadband characteristic, so that the frequency division of reference signals at different frequencies can be realized; the variable resistors control the voltage of the voltage-controlled oscillators and the gain of the automatic gain control AGC amplifier, the synchronous regulation of the reference signals and feedback signals is realized, and the frequency division is also realized even if a circuit has fluctuation; the frequency divider has temperature compensation characteristic; when the temperature changes, the influence of the temperature change on the state of the frequency divider can be eliminated, and the frequency divider has temperature stability; the structure is simple and novel and the operation is convenient, and the frequency divider is compatible with a GaAs monolithic microwave integrated circuit.

Description

technical field [0001] The invention relates to the field of microelectromechanical systems, in particular to a frequency divider based on a MEMS wideband phase detector and a temperature compensation resistor. Background technique [0002] A frequency divider is an instrument that uses the principle of feedback control to obtain a frequency signal that is 1 / N times the frequency of the reference signal. Frequency dividers are widely used in many fields, such as wireless communication, radar, and digital television. [0003] In the prior art, most frequency dividers are for frequency division of a single frequency point, which cannot meet the requirements of broadband communication systems. In addition, temperature stability is also one of the basic requirements for frequency dividers. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a frequency divider based on a MEMS broadband phase detector and a temperature c...

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Problems solved by technology

[0003] In the prior art, most frequency dividers are for frequency division of a single frequency point, which cannot meet the needs of broadband communication systems. In addition, temperature stability is also one of the basic requirements for frequency dividers

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