Miniaturized ultra wide band monopole antenna with double notch characteristics

Abstract

The invention discloses a miniaturized ultra-wide band monopole antenna with double notch characteristics. The antenna comprises a dielectric substrate, a radiation patch, a microstrip feeder line, agrounding plate and other structures. According to the design, the radiation patch and the grounding plate are improved, the structure of the radiation patch is in a basic oval shape, circular groovesare regularly formed in the surface of the radiation patch, and the ultra-wide band function is achieved; then a branch knot is added to realize the notch characteristic of the Wi-MAX waveband; and according to the improved floor, regular grooves are formed in the middle of the floor, the ultra-wide band characteristic is achieved through bottom edge corner cutting, then grooves are dug in the middle of the floor, and the notch characteristic of the WLAN waveband is achieved. The monopole ultra-wide band notch antenna well filters electromagnetic interference of the Wi-MAX waveband and WLAN waveband, performs simulation verification through ANSYS HFSS15.0, is good in effect, realizes miniaturization of the ultra-wide band antenna, has the advantages of simple structure, strong anti-interference capability, good radiance and the like, has extremely high use value, and can be applied to various ultra-wide band systems.

Description

technical field [0001] The invention relates to a wave ultra-broadband antenna with a monopole band and double traps, which belongs to the field of wireless communication. Background technique [0002] In recent years, with the needs of people's work and life, wireless communication technology has become an exponential growth trend, which has greater demand and higher requirements for antennas. Because UWB technology has the advantages of high transmission rate, low power consumption, and high resolution, UWB technology has become the most promising research field at present. The ultra-wideband antenna is the core component of the ultra-wideband system, and its performance directly affects the transmission performance of the entire system. [0003] Since the U.S. Federal Communications Commission assigned the 3.1-10.6GHz ultra-wideband to civilian use in 2002, ultra-wideband technology has become a key research field. The UWB system occupies a very wide frequency band, but...

AI Technical Summary

Problems solved by technology

[0004] Traditionally, to solve the problem of electromagnetic interference between ultra-wideband systems and narrowband systems, a band-stop filter is introduced into the ultra-wideband system, but this increases the complexity and cost of the design; currently the best way to solve this problem is to use a Ultra-wideband antennas with notch characteristics mainly use slotting method, adding branch method and parasitic element method, etc.

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