Millimeter-wave ultra-wideband slot antenna made of liquid crystal polymer

Abstract

The invention discloses a millimeter-wave ultra-wideband slot antenna made of a liquid crystal polymer, belongs to the technical field of electromagnetism, and relates to radio frequency integrated ultra-wideband antenna. The ultra-wideband slot antenna has a multi-layer structure; a metal micro-strip feed layer is positioned on an upper surface of the liquid crystal polymer medium (LCP); a metal bottom plate layer is positioned on a lower surface of the LCP; and a first conical metal slot layer and a second conical metal slot layer are embedded into the LCP. The metal micro-strip feed layer is a rectangular metal micro-strip line which is positioned on one side of the wide side of the antenna; the first conical metal slot layer and the second conical metal slot layer respectively have a planar metal pattern structure provided with a conical horn opening and an open slot which is connected with the lower end of the conical horn; the conical horn openings of the first conical metal slot layer and the second conical metal slot layer point at the same wide side of the antenna; the open slot is parallel to the long side of the antenna; however, the dimensions of the conical horn opening and the open slot are different from each other; and the first and second conical metal slot layers and the metal bottom plate layer are electrically connected through metal posts. The millimeter-wave ultra-wideband slot antenna made of the liquid crystal polymer has the advantages of ultra wideband, ultra-low section and tiny shape, and can better perform system package with power active circuits with specific functions.

Description

technical field [0001] The invention belongs to the technical field of electromagnetics, and relates to a radio frequency integrated ultra-wideband antenna, in particular to a multilayer liquid crystal polymer (LCP) millimeter wave slot antenna. Background technique [0002] Currently, the rapid development of wireless broadband communication requires new broadband antennas capable of transmitting high bit rates. The millimeter wave band is an important band for short-distance high-bit-rate wireless communications. So in recent years, small and high-performance UWB antennas in the millimeter wave band have attracted a large number of researchers to carry out research work in this area. [0003] Another important trend in antenna design is the integration of the antenna's RF front-end circuitry. Over the past few years, low temperature co-fired ceramic technology (LTCC) has been heavily used in RF front-end circuits. However, LTCC material is not an ideal material for ante...

AI Technical Summary

Problems solved by technology

When the tapered slot antenna is used as an integrated antenna, it generally needs to install a metal floor, but the metal plate will seriously affect the performance of the antenna, such as reducing the working bandwidth, etc.

Images