A low-profile unidirectional radiating differential ultra-wideband antenna
An ultra-wideband antenna with poor radiation technology, which is applied in the field of antennas in the wireless communication field, can solve the problem of high height, and achieve the effects of reduced height, simple structure, and reduced volume
Active Publication Date: 2020-11-10
SHANXI UNIV
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Problems solved by technology
[0004] In order to solve the problem that the existing ultra-wideband antenna needs to be placed in the air and the height of the ordinary package cavity is too high, the present invention provides a miniaturized, low-profile, unidirectional radiation ultra-wideband antenna, which not only has good broadband impedance characteristics, and has a lower profile and higher gain
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[0028] The embodiment of the present invention will be described in detail below with reference to the accompanying drawings: This example is implemented in the present invention, and a detailed embodiment is given.
[0029] figure 1 As shown: The low cross-sectional one-way radiation differential ultra-wideband antenna includes two-way radiation differences ultra-wideband antenna and a package cavity. For convenience, the present invention establishes the following coordinate system, the coordinate original is located at the center of the uppermost ground plate, and the XY plane is built in the plane where the uppermost floor is located, the X axis is along the balance metal strip, the Y axis is vertical, the Z axis is perpendicular to The plane where the floor is located.
[0030] The two-way radiation differential ultra-wideband antenna includes a left feed patch 1, a right feed patch 2, a rectangular dielectric substrate 3, and a ground plate 4; left feed patch 1, right feed ...
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The invention provides a low-profile unidirectional radiation differential ultra-wideband antenna. The antenna of the field of wireless communication comprises a bidirectional radiation differential ultra-wideband antenna and a packaging cavity. The bidirectional radiation differential ultra-wideband antenna comprises a left feed patch, a right feed patch, a rectangular dielectric substrate and agrounding plate. The packaging cavity comprises a packaging ground, a short circuit via hole, a radiation edge shielding via hole, a non-radiation edge shielding via hole, a shielding metal tape, an impedance matching via hole and an impedance matching circular plate. The upper end of the packaging cavity is connected with the grounding plate, and the lower end is connected with the packaging ground. The lower ends of the radiation edge and non-radiation edge shielding via holes are connected on the packaging ground, and the upper ends are suspended. The impedance matching via hole is arrangedin the packaging cavity, the lower end is connected with the packaging ground and the upper end is suspended. The shielding via hole and the shielding metal tape are additionally arranged on the radiation edge and the non-radiation edge so that unidirectional radiation of the antenna can be realized, and the ultra-wideband working of the antenna can also be realized. The height of the whole packaging cavity is 1 / 10 of the wavelength at the lowest working frequency so that the height of the whole antenna can be greatly reduced and the volume of the antenna can be reduced.
Description
Technical field [0001] The present invention relates to an antenna in the field of wireless communication, specifically a low-profile unidirectional radiation differential ultra-wideband antenna. Background technique [0002] With the rapid development of wireless communications, the global positioning system, satellite communications, personal communications and other communication systems have put forward higher requirements for the broadband and miniaturization of the antenna. Ultra Wide Band Communication Technology is widely used in communication, radar and military. [0003] In recent years, many scholars have proposed a variety of ultra-wideband antennas, such as single-layer structural ultra-wideband antennas (Liang Lu, et al. * # * Single-Layer Differential CPW-Fed UWB Antenna with Common-Mode Suppressed and Band Notched Applications * # *, "MicroWave & OpticalTechnology Letters", 2017, 59 (1): 73-77); Differential MIMO antenna applied to ultra-wideband systems (YY Liu e...
Claims
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IPC IPC(8): H01Q1/48H01Q1/50H01Q19/02
CPCH01Q1/48H01Q1/50H01Q19/02
Inventor 张文梅李莉耿彦峰陈新伟马润波韩丽萍
Owner SHANXI UNIV