X/Ku-frequency-band double-frequency dual-polarization microstrip-flat-reflective-array antenna

A technology of planar reflection and array antennas, which is applied to antenna unit combinations with different polarization directions, antennas, and radiating element structures, etc., can solve the problems of narrow antenna bandwidth, difficulty in aligning and processing costs for double-layer structures, and achieve low cost, The effect of light weight and good dual-frequency radiation characteristics

Active Publication Date: 2016-02-24
NAT SPACE SCI CENT CAS
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Problems solved by technology

[0003] The bandwidth of traditional microstrip planar reflectarray antennas is usually narrow, generally less than 10%, so it is of great significance to realize multi-frequency or aperture multiplexing
However, the double-layer structure has i

Method used

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  • X/Ku-frequency-band double-frequency dual-polarization microstrip-flat-reflective-array antenna

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 Shown, a kind of X / Ku frequency band dual-frequency dual-polarized microstrip flat plate reflectarray antenna includes: a feed source and a microstrip flat plate reflectarray; the feed source is a pyramidal horn antenna; the microstrip flat plate reflectarray includes Several double parallel vibrator units, the double parallel vibrator unit includes two parallel vibrator patches with different lengths and the same width: a long vibrator patch and a short vibrator patch; these units are arranged on the dielectric base a.

[0023] Such as figure 2 As shown, the length of the long vibrator patch is a, the length of the short vibrator patch is b, b=k*a, k is a constant; the widths of the long vibrator patch and the short vibrator patch are w, the distance between the long vibrator patch and the short vibrator patch is d....

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Abstract

Provided in the invention is an X/Ku-frequency-band double-frequency dual-polarization microstrip-flat-reflective-array antenna comprising a feed source and a microstrip flat reflective array. The feed source is a pyramidal horn antenna. The microstrip flat reflective array contains a plurality of dual-parallel oscillator units; each dual-parallel oscillator units includes two parallel oscillator pasters with different lengths and identical width: a long oscillator paster and a short oscillator paster; and the units are arranged on a dielectric substrate horizontally and longitudinally in a uniform intersected mode. According to the invention, the provided antenna has the good dual-frequency radiation characteristic and has advantages of simple structure, light weight, and low cost.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to an X / Ku frequency band dual-frequency dual-polarization microstrip planar reflective array antenna. Background technique [0002] With the vigorous development of radar systems, long-distance communication and space detection technology, the demand for high-gain antennas is increasing. Traditional high-gain antennas mainly include parabolic antennas or array antennas. Although parabolic antennas have high gain and wide operating frequency bands, their volume Large, heavy, and the inherent curved surface structure is expensive to process, especially in the millimeter wave frequency band, and the parabolic antenna lacks wide-angle beam scanning capabilities. The forced-feed large array antenna can meet the requirements of wide-angle beam scanning, but it has the disadvantages of large loss, low efficiency, complex control circuit, and high cost. In order to make up for the shortc...

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Application Information

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IPC IPC(8): H01Q13/02H01Q15/14H01Q19/10H01Q21/24H01Q13/08H01Q1/38
CPCH01Q1/38H01Q13/02H01Q13/08H01Q15/14H01Q19/10H01Q21/24
Inventor 薛飞王宏建易敏陈雪刘广
Owner NAT SPACE SCI CENT CAS
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