A Broadband Dipole Antenna Based on Artificial Magnetic Conductor Structure
A technology of artificial magnetic conductors and dipole antennas, which is applied in the structural form of radiation elements and the structural connection of antenna grounding switches, etc., which can solve the problems of unfavorable antenna low-profile design and increased antenna thickness
Active Publication Date: 2017-04-05
SOUTH CHINA UNIV OF TECH
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However, this method tends to increase the thickness of the antenna, which is not conducive to the low profile design of the antenna
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[0027] Such as figure 1 As shown, a broadband dipole antenna based on an artificial magnetic conductor structure includes a dipole antenna 1 and an artificial magnetic conductor structure 2, and the artificial magnetic conductor structure 2 is located directly below the dipole antenna 1, with a vertical distance of It is 2mm, which is mainly used to isolate the electromagnetic wave under the antenna, protect the human body from radiation, and increase the positive gain of the antenna at the same time.
[0028] Such as figure 2 As shown, the dipole antenna is fabricated on a Panasonic R-F770 flexible dielectric substrate 4 with a relative permittivity of 3.2, a dielectric loss tangent of 0.002, and a thickness of 0.14mm, and its size is 26×26×0.14mm 3 .
[0029] The dipole antenna 1 is composed of an antenna radiation branch, an arc-shaped feeder 3 and a flexible dielectric substrate 4. The antenna radiation branch is composed of four S-shaped branches, and the four S-shaped...
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The invention discloses a broadband dipole antenna based on an artificial magnetic conductor structure. The broadband dipole antenna comprises a dipole antenna body and the artificial magnetic conductor structure. The dipole antenna body is composed of antenna radiation branches, an arc-shaped feeder line and a flexible dielectric substrate, wherein the antenna radiation branches are four S-shaped branches, the upper S-shaped branch and the lower S-shaped branch are symmetrical with respect to the center point of the flexible dielectric substrate, the left S-shaped branch and the right S-shaped branch are symmetrical with respect to the center point of the flexible dielectric substrate, the upper S-shaped branch is connected with the left S-shaped branch through a rectangular patch, the lower S-shaped branch is connected with the right S-shaped branch through a rectangular patch, the upper S-shaped branch and the left S-shaped branch are located on the front face of the flexible dielectric substrate, the lower S-shaped branch and the right S-shaped branch are located on the back face of the flexible dielectric substrate, and the arc-shaped feeder line is connected with the S-shaped branches on the front face of the flexible dielectric substrate through a rectangular patch. The artificial magnetic conductor structure is composed of an artificial magnetic conductor flexible dielectric substrate, a periodic square patch unit and a metal floor. The broadband dipole antenna has the advantages of being flexible, small in size, low in profile, broad in band, low in radiation, high in gain, attractive and the like, and is suitable for the field of body area networks.
Description
technical field [0001] The invention relates to the field of human body mobile communication, in particular to a wide-band dipole antenna based on an artificial magnetic conductor structure. Background technique [0002] With the combination of mobile electronic technology and ultra-low power consumer electronics, and the miniaturization of semiconductor wireless transceiver chips and sensors, the body area network (BAN) can realize medical devices and external sensors in the body through high-speed, short-distance wireless technology. wirelessly interconnected and utilize monitoring tools to provide real-time patient health data. The human body area network system plays an important role in telemedicine, mobile health care, and military intelligence. Global medical care and health diagnosis and treatment methods are undergoing rapid changes, and new services that support remote real-time detection and treatment will continue to emerge, thereby promoting the development of ...
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IPC IPC(8): H01Q1/36H01Q1/50
Inventor 刘雄英邸允会
Owner SOUTH CHINA UNIV OF TECH