Double frequency function curved antenna

Abstract

A double frequency antenna in zigzag shape, which can provide antenna receiving and transmitting functions for radio communication device, includes base plate, conductor in zigzag shape and a feeder line, among which the base plate is made of dielectric material or magnetic material and including a first surface, the conductor in zigzag shape is attached on the first surface with a periodic reciprocating folding mode and including a middle jointing point between two ends of the conductor in zigzag shape, the feeder line electrically connected with the jointing point in the said middle joint is used for transmitting radio signal to the radio communication device or transmitting the radio signal created by radio communication device to the outside via the conductor in zigzag shape.

Description

technical field [0001] The invention relates to a microstrip meandering-line antenna (Microstrip Meandering-Line Antenna), in particular to a microstrip meandering-line antenna with a dual-band (Dual-Band) function. Background technique [0002] With the development of wireless communication technology, the design of the antenna is also very important. Therefore, how to design a dual-band antenna suitable for different frequency bands has become an important issue in today's antenna design. The antennas used in traditional wireless communication equipment are mostly monopole antennas (Monopole Antenna) or helical antennas (Helix Antenna) with 1 / 4 wavelength. However, due to the large volume occupied, the aesthetics and integrity of the product are affected It is not easy to integrate with the circuit board or the case, so it has been gradually replaced by other types of antennas. [0003] Currently, there are three types of antennas that are mainly used in mobile communicat...

AI Technical Summary

Problems solved by technology

[0006] However, the dual-band microstrip meander antenna 20 shown in FIG. 2 still has its disadvantages

First of all, this kind of antenna has meandering conductors 22a, 22b arranged in different layers, the structure is complicated, and the manufacturing process is cumbersome.

Furthermore, when designing an antenna, the conductor used to receive electromagnetic waves should not be too close to the high-frequency circuit of the system, otherwise it will interfere with the normal operation of the high-frequency circuit. Therefore, the distance d1 shown in Figure 2 should not be too small. It adopts a layered structure, so the distance d2 cannot be too small, so the volume of the entire antenna cannot be further reduced

[0007] In addition, the lower the frequency of the electromagnetic wave, the longer the wavelength, and the receiving antenna must be correspondingly lengthened. Therefore, under the structure shown in FIG. , which will increase the size of the antenna, which does not conform to the design trend of thinner and shorter communication devices

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