A Binary Frequency Reconfigurable Microstrip Antenna

A binary, microstrip antenna technology, applied in the direction of antenna, antenna grounding device, radiating element structure, etc., can solve problems such as narrow operating bandwidth, and achieve the effect of good impedance matching, simple overall structure and wide application range

Active Publication Date: 2022-02-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

For example, Huda A.Majid et al. published an article "A Compact Frequency-Reconfigurable Narrowband Microstrip SlotAntenna" in 2012, which is also based on the microstrip monopole antenna, and the frequency can be realized by changing the effective electrical length of the floor slot. Reconfiguration, but each of its working bandwidths is narrow, and using up to 5 PIN diode switches, only 6 different working states are realized

Method used

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  • A Binary Frequency Reconfigurable Microstrip Antenna
  • A Binary Frequency Reconfigurable Microstrip Antenna
  • A Binary Frequency Reconfigurable Microstrip Antenna

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Embodiment Construction

[0022] The technical solution of the invention will be described in detail below in conjunction with the accompanying drawings.

[0023] The binary frequency reconfigurable microstrip antenna disclosed by the present invention is as figure 2 shown in figure 1 The frequency reconfigurable design is carried out on the basis of the simple microstrip monopole antenna shown. The antenna consists of an upper microstrip structure, a middle dielectric substrate and a bottom metal floor. Attached to the top and bottom of the interlayer dielectric substrate. The upper microstrip structure of the reconfigurable microstrip antenna is as follows figure 2 As shown, it includes: 50 ohm microstrip feeder 1, main microstrip 2, impedance matching stub 3, first microstrip ring structure 4, second microstrip ring structure 5, 50 ohm microstrip feeder 1 connected to the main One end of the microstrip line 2, the other end of the main microstrip line 2 is connected to the impedance matching br...

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Abstract

The invention discloses a binary frequency reconfigurable microstrip antenna, which belongs to the technical field of basic electrical components. The frequency reconfigurable antenna consists of an intermediate dielectric substrate, an upper microstrip structure disposed on the intermediate dielectric substrate, and a bottom metal floor with a rectangular defect ground structure, wherein the upper microstrip structure includes a short microstrip feed Electric wires, a longer main microstrip line and microstrip ring structures of different sizes around the two sides of the main microstrip line. A gap is left between the main microstrip line and the ring structures on both sides to place three PIN diodes, and the effective electrical length of the antenna is changed by switching the diodes to realize the three-bit binary frequency reconfigurable characteristic. The structure of this design is simple, the volume is small, and it is realized in the form of a microstrip circuit. Only three PIN diode switches are used to realize eight different working states, which can meet the frequency requirements of different communication systems. Similar to the direction diagram of the half-wave oscillator, omnidirectional radiation on the H-plane is realized.

Description

technical field [0001] The invention discloses a binary frequency reconfigurable microstrip antenna, which has eight different working states and covers a wider bandwidth, relates to reconfigurable antenna technology in wireless communication, and belongs to basic electrical components technical field. Background technique [0002] The quality requirements of the current wireless communication are constantly improving, and the antenna is an indispensable part of the wireless communication system. The improvement of the performance of the antenna can greatly affect the communication quality of the entire wireless communication system. Traditional antennas are generally designed for a single function. Nowadays, more and more multi-functional antennas can meet the frequency requirements of different mobile communication systems. Reconfigurable antennas have become a better solution to a series of problems caused by diversified frequency requirements and tight spectrum resource...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00H01Q1/38H01Q1/48H01Q13/08
CPCH01Q15/002H01Q15/0046H01Q1/38H01Q1/48H01Q13/08
Inventor 刘云杨越友
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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