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Small-sized coplanar waveguide fed ultra-wide band antenna

An ultra-broadband antenna and waveguide feeding technology, which is applied to the antenna grounding device and the structural form of the radiation element, can solve the problems that have not been reported publicly, and achieve the effects of good repeatability, convenient mass production, and high precision

Active Publication Date: 2015-09-30
YUNNAN UNIV
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Problems solved by technology

[0004] A kind of miniaturized coplanar waveguide feeding ultra-wideband antenna designed by the present invention, through literature search, there is no public report identical with the present invention

Method used

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  • Small-sized coplanar waveguide fed ultra-wide band antenna
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Embodiment Construction

[0026] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] Depend on figure 1 As shown, a miniaturized coplanar waveguide fed ultra-wideband antenna in the present invention consists of the following seven parts: a dielectric plate (1), a first "ladder" microstrip structure (2), a second "ladder" shape Microstrip structure (3), "double hole bridge" microstrip structure (4), "moon" shaped microstrip structure (5), rectangular microstrip structure (6), rectangular microstrip feeder (7), the first " Arc slope"-shaped microstrip structure (8) and a second "arc slope"-shaped microstrip structure (9), wherein:

[0028] a. The dielectric plate (1) is a cuboid, using FR4 dielectric material with a dielectric constant of 4.6 and a loss tangent of 0.02, and its size is 20mm*15mm*1.6mm;

[0029] b. The first "ladder" microstrip structure (2) and the second "ladder" microstrip structure (3) have the sa...

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Abstract

The invention relates to a small-sized coplanar waveguide fed ultra-wide band antenna, and belongs to the technical filed of wireless communication. The small-sized coplanar waveguide fed ultra-wide band antenna comprises a rectangular FR4 dielectric slab with the dielectric constant being 4.6, a first step-type microstrip structure, a second step-type microstrip structure, a double-arch-bridge type microstrip structure, a moon-shaped microstrip structure, a rectangular microstrip structure, a rectangular microstrip feedline, a first arc-slope-shaped microstrip structure and a second arc-slope-shaped microstrip structure, wherein the first step-type microstrip structure, the second step-type microstrip structure, the double-arch-bridge type microstrip structure, the moon-shaped microstrip structure and the rectangular microstrip structure form a radiation sticker with a small semi-circular groove, a big semi-circular groove and a rectangular groove; the first arc-slope-shaped microstrip structure and the second first arc-slope-shaped microstrip structure form a common ground structure; a gap is formed between the first arc-slope-shaped microstrip structure and the rectangular microstrip feedline as well as between the second arc-slope-shaped microstrip structure and the rectangular microstrip feedline, so that coplanar waveguide is formed. The small-sized coplanar waveguide fed ultra-wide band antenna provided by the invention is simple in structure, compact in size, low in cost, high in precision, wide in frequency band, good in radiation characteristic, easy to integrate and suitable for small and portable ultra wide band terminal equipment.

Description

technical field [0001] The invention relates to a miniaturized coplanar waveguide feeding ultra-wideband antenna, which belongs to the technical field of wireless communication. Background technique [0002] Ultra-wideband (UWB) technology is a new type of short-distance high-speed wireless communication technology that has attracted much attention at present. Since the U.S. Federal Communications Commission classified the 3.1GHz-10.6GHz frequency band as an UWB system frequency band, the industry and academia have carried out a lot of research work in the field of UWB radio technology. As an important component of UWB systems, UWB antennas have attracted extensive research in terms of broadband impedance matching, stable radiation patterns, miniaturization, and low cost. [0003] At present, a large number of planar UWB microstrip antennas have been proposed, most of which can cover the UWB frequency band of 3.1GHz-10.6GHz, and have better radiation characteristics. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48
Inventor 申东娅何谢勇袁洪任文平张秀普覃继先
Owner YUNNAN UNIV
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