Complementary split ring resonator (CSRR) distributed control Beidou dual-band antenna with variable reactance resonant ring
A distributed control, dual-frequency antenna technology, applied to antennas, devices that enable antennas to work in different bands at the same time, circuits, etc., can solve problems such as poor directivity, narrow frequency band, and low efficiency, and achieve less consumables and smaller return loss , easy integration effect
Active Publication Date: 2015-12-23
XIAMEN UNIV
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Problems solved by technology
Among them, the microstrip antenna is famous for its low profile, easy to integrate with the circuit, printing and engraving process, etc., but there are also disadvantages such as narrow frequency band, small gain, poor directivity and low efficiency, so the research on the microstrip antenna is very important. Engineering value and theoretical significance
[0006] At present, there is no report on the use of CSRR distributed control of Beidou dual-frequency antenna with variable reactance resonant ring
Method used
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[0030] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.
[0031] see figure 1 with figure 2 , CSRR distributed control Beidou dual-frequency antenna with variable reactance resonant ring, with a square dielectric substrate (ceramic dielectric substrate) 2, a good conductor layer on the upper surface (square radiation patch) 1, a good conductor layer on the lower surface (square ground plate) ) 3, mark 4 is an SMA connector; mark 5 is a feed hole; the square radiation patch 1 and the square ground plate 3 are applied on the upper and lower surfaces of the dielectric substrate 2 respectively.
[0032] see figure 1 with image 3 , the dielectric constant of the dielectric substrate 2 is 5.8, the outline of the dielectric substrate 2 is a square, the side length is 45mm±0.1mm, and the thickness is 2±0.1mm. The length b1 of the long side of the L-shaped branch is 13.5±0.1mm, the width b2 is 0.9±0.1mm; the leng...
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Abstract
A CSRR distributed control Beidou dual-band antenna with a variable reactance resonant ring relates to a dual-band microstrip antenna and is equipped with a square medium substrate, and good conductor layers are laid on the upper and lower surfaces of the medium substrate. The upper surface good conductor layer is a square radiation paster, and the square radiation paster is equipped with a variable reactance resonant ring structure and a CSRR distribution control structure. The closed L-shaped resonant rings are loaded at the outer sides of the four corners of the square radiation paster, the stepped structures are loaded on the closed L-shaped resonant rings which are loaded at the outer sides of a set of opposite angles of the square radiation paster, and each closed L-shaped resonant ring is composed of an edge of the square radiation paster and two L-shaped branch knots. The CSRR distributed control structure is characterized by distributing and loading the CSRR structures at the four corners of the square radiation paster respectively, and the four CSRRs are arranged in a format of 90-degree rotational symmetry. The stepped structures with the variable reactance characteristics are loaded at the other set of opposite angles of the square radiation paster, and each stepped structure comprises a first-level step and a second-level step from inside to outside.
Description
technical field [0001] The invention relates to a dual-frequency microstrip antenna, in particular to a CSRR distribution control Beidou dual-frequency antenna with a variable reactance resonant ring. Background technique [0002] The Beidou satellite navigation system is a global satellite navigation system independently developed and operated by my country. It is compatible with the US GPS, Russia's GLONASS, and the EU's Galileo system. It can provide high-precision, high-reliability positioning , navigation and timing services, and also has the characteristics of short message communication, differential service and integrity service. At present, the Beidou satellite navigation system has been widely used in national defense and military, personal location services, weather monitoring, road traffic management, sea and water transportation, air transportation, emergency rescue, etc. [0003] The space segment of the Beidou satellite navigation system under construction con...
Claims
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Login to View More IPC IPC(8): H01Q1/38H01Q5/10
Inventor 游佰强薛团辉周建华李文卓李世冲
Owner XIAMEN UNIV