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27MHz crystal oscillator frequency synthesizer used for millimeter wave wireless communication

A technology of crystal oscillator frequency and synthesizer, applied in automatic power control, electrical components, etc., can solve the problems of low difficulty in implementation and less application research

Inactive Publication Date: 2013-01-09
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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  • Description
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Problems solved by technology

The Q-band frequency has the characteristics of relatively low difficulty in implementation and relatively good spectrum resources, but there are few researches on the application of this frequency band in the prior art

Method used

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  • 27MHz crystal oscillator frequency synthesizer used for millimeter wave wireless communication

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Embodiment Construction

[0020] see figure 1 , a 27MHz crystal oscillator frequency synthesizer for millimeter wave wireless communication provided by an embodiment of the present invention includes a 27MHz crystal oscillator 101, a frequency and phase detector 102, a charge pump 103, a low-pass filter 104, a quadrature voltage control Oscillator 105, divider by 2 frequency divider 106, divider by 5 frequency divider 107 and divider by 163 / 164 / 165 / 167 / 168 / 169 / 171 / 172 / 173 multimode frequency divider 108;

[0021] Among them, the 27MHz crystal oscillator is used to generate a reference signal;

[0022] The frequency and phase detector is used to receive the reference signal, and compare the reference signal with the signal generated by the 163 / 164 / 165 / 167 / 168 / 169 / 171 / 172 / 173 multimode frequency divider to generate a phase difference signal ;

[0023] The charge pump is used to receive the phase difference signal and convert the phase difference signal into a current signal;

[0024] The low-pass filt...

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Abstract

The invention discloses a 27MHz crystal oscillator frequency synthesizer used for millimeter wave wireless communication and belongs to a Q waveband high-speed short-distance wireless communication system in a wireless personal area network (WPAN). The 27MHz crystal oscillator frequency synthesizer comprises a 27MHz crystal oscillator, a frequency discrimination and phase discrimination device, a charge pump, a low-pass filter, a quadrature voltage-controlled oscillator, a divide-by-2 frequency divider, a divide-by-5 frequency divider and a divide-by-163 / 164 / 165 / 167 / 168 / 169 / 171 / 172 / 173 multimode frequency divider. When the frequency dividing ratio of the multimode frequency divider is changed, the input reference frequency is not changed so that the voltage-controlled oscillator outputs Q waveband local oscillator signals with different frequencies, and local oscillator signals with different frequency points can be achieved in the multimode frequency divider.

Description

technical field [0001] The invention belongs to the Q-band high-speed short-distance wireless communication system in WPAN (Wireless Personal Area Network), and particularly relates to a 27MHz crystal oscillator frequency synthesizer for millimeter wave wireless communication. Background technique [0002] Due to its large bandwidth, millimeter wave wireless communication can achieve a transmission rate of up to Gbps order, and will also become the mainstream technology of ultra-high-speed wireless personal area network. At present, consumer electronics manufacturers such as NEC, Samsung, Panasonic and LG have jointly established the WirelessHD Alliance to promote the application of millimeter wave technology in uncompressed high-definition video transmission, which shows its huge market potential. At present, millimeter-wave technology has become the focus of academic and industrial circles in the world. The International Solid State Circuits Conference (International Solid...

Claims

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Application Information

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IPC IPC(8): H03L7/08H03L7/18
Inventor 李志强张海英
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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