Multi-waveband microband paster antenna
A microstrip patch antenna, multi-band technology, applied in the direction of the antenna, electrical components, radiating element structure and other directions, can solve the problems of complex structure and feeding system, high precision requirements, difficult to integrate, etc., to achieve a simple feeding system , easy to integrate and low cost to manufacture
Inactive Publication Date: 2006-11-01
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
[0006] There are many shortcomings in the current multi-band antenna technology, among which the structure and feeding system are relatively complicated: most of the existing multi-band antennas have a flat structure including two layers of different media, or have such as spiral patches, Very complex structures such as metal cavities, matching loading, etc.
Therefore, the manufacturing process is complicated, the precision is high, the cost is high, the yield is low, and it is not easy to integrate with other equipment
Method used
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Embodiment Construction
[0032] see figure 1 , the present invention is a multi-band microstrip patch antenna, comprising: a rectangular metal patch 1 whose length is L and whose width is W, a metal ground plate 2 parallel to the metal patch 1 and located between the metal patch 1 and The insulating filling medium between the metal ground plate 2; the antenna is installed vertically between the metal patch 1 and the metal ground plate 2: a feeding probe 3 and a plurality (4 in the figure) for loading short circuit The pins 4, these short-circuit pins 4 are used to excite multiple discrete resonant frequencies to realize multi-band transmission or reception of the antenna. In the figure, the four short-circuit pins 4 are arranged longitudinally to form a straight line and installed at one end of the metal patch 1, and the connection line is parallel to the edge of the metal patch 1; the best installation position is located at the edge of the metal patch 1, That is, the outer diameters of these short-...
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A multi-band microstrip patch antenna includes: a metal patch, a metal ground plate parallel to the metal patch, and an insulating filling medium between the metal patch and the metal ground plate; it is characterized in that: the antenna Installed vertically between the metal patch and the metal grounding plate: several short-circuit pins for loading and a feed probe, the several short-circuit pins for loading are installed at one end of the metal patch to excite multiple discrete Resonant frequency, to achieve multi-band transmission or reception; the installation position of the feed probe deviates from the horizontal axis of the metal patch, and away from the end of the metal patch where the short-circuit pin is installed, so as to reduce the impact of the short-circuit pin on the input impedance . Metal patches, metal ground plates and shorting pins are all made of metallic copper, and feed probes are made of coaxial cables or microwave connectors. While realizing multi-band work, the antenna also has the advantages of small size, low cost, simple structure, and easy integration with other devices.
Description
technical field [0001] The invention relates to a multi-band microstrip patch antenna applied to wireless communication, and belongs to the technical field of resonant microstrip antennas. Background technique [0002] In recent years, people's demand for information and multimedia communication systems has been increasing, and the communication network has also continued to expand. Today, academia and engineering have made a lot of explorations and efforts in the field of dual-band and triple-band microstrip antennas. The main direction is to improve the usually small working bandwidth of probe-fed monolithic single-layer microstrip antennas. [0003] Now, there are many methods for implementing small dual-band microstrip antennas. These include loading the patch with shorting pins or slots, and using rectangular rings. Various forms of loading are achieved by perturbing its field distribution and changing the resonant frequency of various modes formed on its patch. The ...
Claims
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IPC IPC(8): H01Q13/08H01Q1/38
Inventor 刘元安阿卜杜克里穆何珏
Owner BEIJING UNIV OF POSTS & TELECOMM