A miniaturized ODU receiving channel module
A receiving channel, intermediate frequency technology, applied in the field of communication, can solve the problems of poor electromagnetic compatibility, large space occupied, complex circuit, etc., and achieve the effect of stable and reliable applicable frequency range, low power consumption, and small size
Pending Publication Date: 2019-01-04
江苏屹信航天科技有限公司
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Problems solved by technology
[0004] The technical problem mainly solved by the present invention is to provide a miniaturized ODU receiving channel module, which solves the problems in the prior art that the receiving channel module takes up a large space, complex circuits in a limited space, and poor electromagnetic compatibility.
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[0029] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0030] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present invention. Terms used in the description of the present invention are only for the purpose of describing specific embodiments, and are not used to limit the present invention.
[0031] V...
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The invention discloses a miniaturized ODU receiving channel module which comprises a box body and a box cover. The interior of the box body includes an upper chamber and a lower chamber separated from each other. A cavity filter for filtering an input radio frequency signal is arranged in the upper cavity. The RF signal output end of the cavity filter is connected with a RF channel circuit, an intermediate frequency cavity for receiving an intermediate frequency channel circuit and a power supply cavity for accommodating a power supply circuit are arranged in the upper chamber. A local oscillator circuit is arranged in the lower chamber. An intermediate frequency signal generated by mixing a radio frequency signal output from the radio frequency channel circuit with a local oscillator signal generated by the local oscillator circuit is input to the intermediate frequency channel circuit. The receiving channel module has the advantages of small volume, low power dissipation, high stability, high reliablity and wide frequency band range.
Description
technical field [0001] The invention belongs to the technical field of communication, in particular to a miniaturized ODU receiving channel module. Background technique [0002] In satellite communication equipment, ODU (Out-door Unit) refers to the outdoor unit, mainly including frequency conversion and power amplification, which can be divided into transmission channel and reception channel. The transmission channel usually refers to BUC (Block Up-Converter), It is an up-conversion RF power amplifier, and the receiving channel mainly refers to LNB (Low Noise Block down-converter), that is, low noise amplifier and frequency converter. [0003] The receiving channel module usually refers to the channel module that down-converts the received radio frequency signal, mainly involves low noise power amplification, frequency conversion, filtering, etc., and has a high working frequency band and a large frequency band span, usually in the microwave or millimeter wave band. The pr...
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IPC IPC(8): H04B1/16
CPCH04B1/16Y02D30/70
Inventor 裴晨张玲玲顾鹏王寰星刘凯
Owner 江苏屹信航天科技有限公司