Miniaturized Frequency Reconfigurable Microstrip Slot Antenna

A microstrip slot and microstrip feeder technology, which is applied to antennas, antenna grounding devices, and devices that enable antennas to work in different bands at the same time, can solve problems such as low integration, large number of antennas in wireless communication systems, and large equipment volume , to achieve the effects of simple antenna structure, reduced crosstalk and low cost

Inactive Publication Date: 2017-09-26
SHANXI UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of large number of antennas, large equipment volume and low integration in the current wireless communication system, and provide a miniaturized frequency reconfigurable microstrip slot antenna

Method used

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  • Miniaturized Frequency Reconfigurable Microstrip Slot Antenna
  • Miniaturized Frequency Reconfigurable Microstrip Slot Antenna
  • Miniaturized Frequency Reconfigurable Microstrip Slot Antenna

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Embodiment Construction

[0021] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] as attached figure 1 , 2 As shown, a miniaturized frequency reconfigurable microstrip slot antenna includes a microstrip feeder 1 in the upper layer, a dielectric substrate 2 in the middle layer, and a ground plate 3 in the lower layer; the microstrip feeder 1 is a stepped feeder; the The grounding plate 3 etches two L-shaped open circuit gaps 4 and a U-shaped short-circuit gap 5, wherein the two L-shaped open circuit gaps 4 are etched symmetrically with a central line of the ground plate 3; the horizontal branches of the U-shaped short-circuit gap 5 and The center lines intersect vertically; three PIN diodes 6-1, 6-2, 6-3 are respectively loaded on two L-shaped open circuit gaps 4 and U-shaped short circuit gaps 5; the ground plate 3 is also etched with four There are three bias slots 7-1, 7-2, 7-3, 7-4, and ten DC blocking capacitors 8 are l...

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Abstract

The invention relates to the technical field of antennas in the comprehensive design of communication systems, in particular to the design of frequency reconfigurable microstrip antennas, specifically a miniaturized frequency reconfigurable microstrip slot antenna, which solves the problem of the large number of antennas in the current wireless communication system and the radio frequency The technical problem of low front-end integration. It consists of three layers, the upper layer is a microstrip feeder, the middle layer is a dielectric substrate, and the lower layer is a ground plane. The ground plate is etched with two L-shaped open-circuit gaps and one U-shaped short-circuit gap, and all the gaps are left-right symmetrical about the center of the ground plate. In order to achieve frequency reconfigurability, a PIN diode is loaded in each slot, and the antenna produces four working modes by controlling the different combination states of the diodes. The invention can work in the 2.3GHz frequency band of the fourth generation mobile communication system, the 4.4GHz frequency band of the aeronautical mobile telemetry system and the 5.8GHz frequency band of the wireless local area network system.

Description

technical field [0001] The invention relates to the technical field of antennas in the comprehensive design of communication systems, in particular to the design of compact and highly integrated frequency reconfigurable microstrip antennas, in particular to a miniaturized frequency reconfigurable microstrip slot antenna. Background technique [0002] With the vigorous development of wireless communication technology, many wireless communication systems (such as the fourth generation mobile communication system TD-LTE, aviation mobile telemetry system AMT and wireless local area network system WLAN, etc.) can be integrated into a communication platform. The antenna structure and size of different wireless communication systems are not the same. If multiple communication systems are integrated and still use their own antennas, it will cause problems such as bulky equipment in the wireless communication system and increased interference between systems. In order to solve these ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/48H01Q5/10H01Q5/28H01Q5/314
Inventor 韩丽萍王彩霞陈新伟张文梅
Owner SHANXI UNIV
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