Gain band-notched characteristic filtering antenna

Abstract

The invention discloses a gain band-notched characteristic filtering antenna. The gain band-notched characteristic filtering antenna includes a dielectric substrate, wherein a slot line, a first disturbance stub and a second disturbance stub; the slot line is perpendicular to a central axis of the dielectric substrate, and is symmetrical with the central axis of the dielectric substrate; the structure and the size of the first disturbance stub are identical to the structure and the size of the second disturbance stub; and the first disturbance stub and the second disturbance stub are respectively arranged at two sides of the central axis of the dielectric substrate, and perpendicularly intersect with the slot line. On the premise of not introducing an additional resonator and not damaging the antenna impedance frequency response continuity, the gain band-notched characteristic filtering antenna can achieve the filtering effect by means of regulation and control of the intrinsic radiation mode of the antenna, and has the advantages of being simple in structure, being low in manufacturing cost, and having a wide application prospect in the wireless communication field.

Description

technical field [0001] The invention relates to the field of microwave technology, in particular to a filter antenna with gain band notch characteristics. Background technique [0002] In recent decades, with the continuous development of information electronics technology, various new technologies and new materials emerge in an endless stream, which promotes the development of electronic equipment in wireless communication in the direction of low power, miniaturization and multi-function. This development trend puts forward more and more stringent requirements on the design of the antenna. Antennas not only need to meet increasingly stringent design size requirements, but also need to be able to operate over a wide frequency band while having high radiation efficiency. [0003] Antennas and filters are the most common and important equipment in the wireless communication front-end, and their performance directly affects the entire wireless communication system. In most wi...

AI Technical Summary

Problems solved by technology

These designs either easily increase the loss, or destroy the continuity of the impedance frequency response and the spectrum continuity of the pulse signal, resulting in trailing oscillation of the signal, which is not conducive to the transmission and reception of narrow pulse signals.

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