Wide-band microwave local oscillator generator combined direct multiply-frequency with lock phase

A generator and frequency doubling technology, which is applied to waveguide devices, electrical components, circuits, etc., can solve the problems that broadband and small steps are difficult to achieve, high frequency bands are difficult to achieve, and communication quality is affected, so as to omit the microwave debugging process , debugging-free, and the effect of ensuring signal quality

Inactive Publication Date: 2007-09-05
JESON WIRELESS
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Problems solved by technology

[0004] 2) Good phase noise and spurious control performance: This is an important indicator of microwave communication, which directly affects the quality of communication. Now there are mainly direct frequency multiplication technology and microwave phase-locking technology. Direct

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  • Wide-band microwave local oscillator generator combined direct multiply-frequency with lock phase

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[0020] Please refer to Figure 1 for further description of the present invention.

[0021] As shown in Figure 1 the circuit principle block diagram of the present invention, the present invention provides a broadband microwave local oscillator generator combining direct frequency multiplication and phase lock. 1- Piezoelectric oscillator VCO generates low-noise high-frequency signals to power distribution Device 2, sent to the phase-locked circuit, then sent to the loop filter 4, and then fed back to the 1-piezoelectric oscillator VCO to form a phase-locked loop signal source generating circuit for fractional frequency division and phase discrimination stray suppression; The three parts of the filter 5, the filter 6 and the amplifier 7 form a direct frequency multiplication circuit, which multiplies the frequency of the signal generated by the phase lock source.

[0022] The circuit consists of a phase-locked source part and a direct frequency multiplication part.

[0023] The pha...

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Abstract

The invention is concerned with the broad band microwave local-surge generator, it is: the vector-controlled oscillator creates low-voice high-frequency signal to the power divider, the phase-lock circuit, the loop filter in turn, then feedback to the vector-controlled oscillator in order to form the phase-lock loop signal source creating circuit that is the decimal fraction frequency division and reflecting-phase mixed-dispel suppression, the high-frequency signal creating by the circuit passes the frequency multiplier, the filter and the amplifier to get the signal source with different frequency that is needed by the microwave system. The invention can achieve the multi circuit local-surge creation on the veneer with lower cost.

Description

technical field [0001] The invention relates to a broadband microwave local oscillator generator, in particular to a broadband microwave local oscillator generator combining direct frequency doubling and phase locking. Background technique [0002] In the microwave point-to-point communication technology of PDH and SDH, in order not to interfere with the existing communication bands, they generally work in the high-frequency microwave bands of 7GHz, 8GHz or even more than ten G, and have strict requirements on signal quality. Based on this, high-frequency local oscillator generators for microwave frequency conversion are also increasingly developed. The system has the following requirements for the high-frequency local oscillator generator: [0003] 1) Lower cost: Many microwave devices have excellent indicators due to the concentration of the most cutting-edge technology, but at the same time they are expensive. The low-cost realization in the microwave band has become mor...

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Application Information

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IPC IPC(8): H01P1/213H01P1/20
Inventor 朱新平张勇
Owner JESON WIRELESS
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