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A Microwave and Millimeter Wave External Load Multi-Orthogonal Invertable Filter

A millimeter wave and filter technology, which is applied in the field of microwave and millimeter wave external load multi-orthogonal invertible filters, can solve the problems of insufficient phase difference and unsatisfactory, and achieve mass production, low cost, and in-band flat effect

Inactive Publication Date: 2017-02-22
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the current situation, the output of the directional coupler is two columns of equal-amplitude signals with a phase difference of 90°. The phase difference is not rich enough to meet the needs of many situations.
At the same time, the output of the balanced filter is two columns of equal-amplitude signals with a phase difference of 180°. Similarly, the phase difference is not rich enough

Method used

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  • A Microwave and Millimeter Wave External Load Multi-Orthogonal Invertable Filter
  • A Microwave and Millimeter Wave External Load Multi-Orthogonal Invertable Filter
  • A Microwave and Millimeter Wave External Load Multi-Orthogonal Invertable Filter

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Embodiment Construction

[0024] combine figure 1 , a microwave and millimeter wave external load multi-orthogonal invertible filter, comprising a directional coupler and a first microwave and millimeter wave filter F1 and a second microwave and millimeter wave filter F2.

[0025] combine figure 2 , the directional coupler includes a surface-mounted 50-ohm impedance first input terminal P1, a surface-mounted 50-ohm impedance isolation terminal P6, and also includes a first matching line L1, a second Matching line L2, third matching line L3, fourth matching line L4, broadside coupled stripline U1 of the first double helix structure, broadside coupled stripline U2 of the second double helix structure, first output inductor Lout1, the second output inductance Lout2: the first input terminal P1 is connected to one end of the first matching line L1, and the other end of the first matching line L1 is connected to one end of the broadside coupled stripline U2 of the double-helix structure of the second laye...

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Abstract

The invention provides a microwave millimeter-wave external-load multi-orthogonal inverse filter comprising a directional coupler and two microwave millimeter-wave filters. The directional coupler comprises two different large-rim coupling strip lines, of double-spiral structures, on parallel planes. Six levels of parallel resonance units are arranged in each microwave millimeter-wave filter. One level of the parallel resonance units, close to the directional coupler, is connected with the directional coupler through an input inductor. The microwave millimeter-wave external-load multi-orthogonal inverse filter is small in size, high in reliability, excellent in electrical performance, high in batch uniformity and stable in temperature performance, can output four columns of multi-orthogonal inverse signals with the same width, and meets various needs.

Description

[0001] 1. Technical field [0002] The invention relates to a filter, in particular to a microwave and millimeter wave external load multi-orthogonal invertible filter. [0003] 2. Background technology [0004] In recent years, with the rapid development of miniaturization of mobile communication, satellite communication and national defense electronic systems, high performance, low cost and miniaturization have become the development direction of the microwave / radio frequency field. The performance, size and reliability of microwave filters Both sex and cost have put forward higher requirements. In some state-of-the-art defense equipment, the frequency bands used are quite crowded now, so cutting-edge equipment such as satellite communications are developing towards the millimeter wave band, so the microwave millimeter wave band filter has become the key electronic component coupler in the receiving and transmitting branches of this band It has always been an important compo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20H01P1/203
Inventor 戴永胜许心影周衍芳陈龙顾家
Owner NANJING UNIV OF SCI & TECH
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