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Rod-seam compound directivity dual-frequency double-feed low-elevation-angle high-gain microstrip antenna

A microstrip antenna, low-elevation-angle technology, applied to antennas, devices that make the antennas work in different bands at the same time, radiating element structures, etc. Low elevation angle performance, the effect of reducing the operating frequency of the antenna

Inactive Publication Date: 2015-09-23
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the beamwidth of ordinary microstrip antennas is generally only about 90 degrees, and the gain at an elevation angle of 10 degrees is relatively small (generally below 8dB), and it is difficult to optimize the gain at low elevation angles

Method used

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  • Rod-seam compound directivity dual-frequency double-feed low-elevation-angle high-gain microstrip antenna
  • Rod-seam compound directivity dual-frequency double-feed low-elevation-angle high-gain microstrip antenna
  • Rod-seam compound directivity dual-frequency double-feed low-elevation-angle high-gain microstrip antenna

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Embodiment Construction

[0022] The technical solution of the present invention and its outstanding effects will be further described below in conjunction with the embodiments and accompanying drawings.

[0023] see Figure 1~4 , the embodiment of the present invention is provided with an upper substrate 1 and a lower substrate 2, and an upper patch A is provided on the upper surface of the upper substrate 1. There is an upper main microstrip patch 5, and the upper main microstrip patch 5 adopts a corner symmetrical square cut corner structure 4, and the upper main microstrip patch 5 is provided with four symmetrical guide slots 6 inside, and the guide slots 6 and There is a gap on the edge of the upper main microstrip patch 5, and there are four symmetrical bar seams on the outermost periphery of the upper main microstrip patch 5 to guide the vibrator 3, and a high-frequency feed point is set in the middle of the upper main microstrip patch 5 7; Between the upper substrate 1 and the lower substrate ...

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Abstract

The invention provides a composite slit leading dual-band and double-fed microstrip antenna with low elevation and high gain, and relates to a microstrip antenna. The microstrip antenna is provided with an upper substrate and a lower substrate, wherein an upper patch is arranged on the upper surface of the upper substrate and provided with a main upper microstrip patch which adopts an angularly symmetrical square chamfer structure; four symmetrical leading gaps are formed in the main upper microstrip patch, and four symmetrical slit leading vibrators are arranged on the outermost periphery of the main upper microstrip patch; an interlayer patch having the same structure with the upper patch is arranged between the upper substrate and the lower substrate and provided with a main interlayer microstrip patch which adopts the angularly symmetrical square chamfer structure; four symmetrical leading gaps are formed in the main interlayer microstrip patch, space is reserved between the four symmetrical leading gaps and the edges of the main interlayer microstrip patch, and four symmetrical rodlike leading vibrators are arranged on the periphery of the main interlayer microstrip patch; and a lower patch is arranged on the lower surface of the lower substrate, and a main lower microstrip patch is arranged on the lower patch.

Description

technical field [0001] The invention relates to a microstrip antenna, in particular to a miniaturized microstrip antenna with high gain, low elevation angle, dual frequency and double feed for Beidou navigation system. Background technique [0002] The BeiDou (COMPASS) Navigation Satellite System is an important research and development hotspot in China, with independent and high-precision navigation capabilities. At present, Beidou satellite navigation system has become one of the four core suppliers recognized by ICG (United Nations Satellite Navigation Committee), and has entered the international arena of satellite navigation. The system will provide land, sea and air navigation and positioning services for military and civilian users in China and surrounding areas, promote the application of satellite positioning, navigation, timing and communication service functions, provide positioning and orbit determination means for aerospace users, and meet the requirements of we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q13/08H01Q5/00H01Q5/10H01Q5/20H01Q5/307
Inventor 周建华全威游佰强胡宝法
Owner XIAMEN UNIV
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