Adjustable multi-frequency slot antenna

A slot antenna and multi-band technology, which is applied in the field of adjustable multi-band slot antennas, can solve the problems of not being able to meet the versatility of multiple systems of communication equipment, and achieve the effect of adjustable working frequency, small size and easy manufacture

CN104022362AInactive Publication Date: 2014-09-03CHINA JILIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-09-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an adjustable multi-frequency slot antenna which comprises a substrate, a slot type rectangular earth plate and an impedance matching input transmission line. The slot type rectangular earth plate and the impedance matching input transmission line are arranged on the upper surface of the substrate, the slot type rectangular earth plate is provided with a middle rectangular slot, a left large rectangular slot, a right large rectangular slot, a first left adjustable rectangular slot, a second left adjustable rectangular slot, a third left adjustable rectangular slot, a first right adjustable rectangular slot, a second right adjustable rectangular slot and a third right adjustable rectangular slot, the first left adjustable rectangular slot and the first right adjustable rectangular slot are respectively provided with a first switch, the second left adjustable rectangular slot and the second right adjustable rectangular slot are respectively provided with a second switch, and the third left adjustable rectangular slot and the third right adjustable rectangular slot are respectively provided with a third switch. The adjustable multi-frequency slot antenna has the advantages of being small in size, adjustable in frequency, easy to manufacture and the like.
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Description

technical field

[0001] The invention relates to antennas, in particular to an adjustable multi-band slot antenna. Background technique

[0002] The antenna is an integral part of all wireless communication systems, responsible for converting the signal from the transmitter into electromagnetic waves for propagation to space, or converting electromagnetic signals in free space into high-frequency signals for receivers to receive. With the continuous development of wireless communication technology, in order to better realize the transmission of wireless signals, higher requirements are put forward on the performance of antennas, which makes wireless communication antennas usher in a major development opportunity. Microstrip antennas have the advantages of low profile, light weight, easy fabrication, low cost, and easy integration with circuits, and are widely used in wireless communication devices. After the existing microstrip antennas are generally processed, there is a f...

Examples

Embodiment 1

[0026] Tunable Multiband Slot Antenna:

[0027] A glass fiber epoxy resin material with a dielectric constant of 4.4 is selected to make a microstrip substrate with a thickness of 1.6 mm. The substrate has a length of 82mm and a width of 46mm. The slotted rectangular ground plate has an overall length of 82mm and an overall width of 46mm. The impedance-matched input transmission line has a length of 23mm and a width of 3mm. The length of the middle rectangular groove is 23mm, and the width is 3mm. The shape and size of the left large rectangular groove and the right large rectangular groove are the same, the length is 12.5mm, and the width is 4mm. The shape and size of the first left adjustable rectangular groove and the first right adjustable rectangular groove are the same, the length is 6mm, and the width is 0.5mm. The shape and size of the left second adjustable rectangular groove and the right second adjustable rectangular groove are the same , the length is 12.5mm, th...