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A Broadband Dual Polarized Feed Source

A dual-polarization, broadband technology, applied in the field of broadband feeds, can solve the problems of large changes in phase center frequency and difficulty in broadband circular polarization, and achieve the effect of reducing the antenna aperture and the number of feeds

Active Publication Date: 2017-04-12
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Logarithmic periodic feed: It is more difficult to synthesize circular polarization in broadband, and the phase center changes greatly with frequency;

Method used

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  • A Broadband Dual Polarized Feed Source
  • A Broadband Dual Polarized Feed Source
  • A Broadband Dual Polarized Feed Source

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Embodiment Construction

[0029] Below, combine Figure 1 to Figure 8 The present invention is further described.

[0030] The present invention includes a radiation oscillator 1 and a feed network 2. The radiation oscillator 1 is divided into two groups and arranged in a V-shape orthogonally. The metal strip lines 21a are correspondingly connected, the middle node 21c of the left metal strip line 21a is connected to the inner conductor 31 of the coaxial interface 3, the right pin 11b of the vertically polarized radiation oscillator 11 and the vertically polarized impedance synthesis printed board 21 The right metal strip line 21b is correspondingly connected, and the middle node 21d of the right metal strip line 21b is connected to the outer conductor 32 of the coaxial interface 3; the left pin 12a of the horizontally polarized radiation oscillator 12 and the horizontally polarized impedance synthesis printed board 22 The left metal strip line 22a is correspondingly connected, the middle node 22c of ...

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Abstract

The invention discloses a broadband dual-polarized feed source in the fields of wireless communication and radio astronomy, which is composed of four groups of radiation oscillators and two impedance synthesis printed boards. The radiation oscillator is a logarithmic periodic dipole array, and the two groups of radiation oscillators placed orthogonally are respectively connected to the two impedance synthesis printed boards placed orthogonally, and the two ends of the left metal strip line of the impedance synthesis printed board The left pins of the two groups of radiation oscillators are connected in one-to-one correspondence, and the two ends of the right metal strip line are connected in one-to-one correspondence with the right pins of the two groups of radiation oscillators, so as to realize the conversion from 8 ports to two coaxial interfaces. The feeding network of the present invention has simple structure, small feeding loss, high feeding efficiency, compact structure and low processing cost, and is especially suitable for feeding sources or antennas and their feeding networks working in broadband applications.

Description

technical field [0001] The invention relates to a broadband feed source in the technical fields of communication, broadband direction finding, remote measurement, remote sensing and radio astronomy. Background technique [0002] The broadband feed can greatly reduce the number of feeds and the aperture of the antenna, and has technical characteristics such as multi-function, multi-purpose, and comprehensive integration. It is precisely because of these advantages that it has a wide range of demands in the fields of military, civilian and astronomy. [0003] At present, there are mainly the following types of broadband feeds: logarithmic spiral feeds, traveling wave resonance (TWR) feeds, logarithmic periodic feeds, SINUOUS feeds, etc. However, these types of feed applications have certain limitations, which are reflected in: [0004] Logarithmic spiral feed: broadband reception in one direction, unable to achieve simultaneous reception in two directions; [0005] Travelin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q5/50
Inventor 牛传峰耿京朝赵东贺杨国栋刘超蒋博蔺占中吴旭何其洪
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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