Preparation method of antenna containing LCP base material

Abstract

The invention belongs to the field of electronic products, and discloses a preparation method of an antenna containing an LCP base material. The preparation method comprises the following step of performing surface treatment on the LCP antenna base material by using a coupling agent, wherein the manufactured antenna comprises an LCP antenna base material and a metal layer, the LCP antenna base material is an LCP antenna base material subjected to coupling agent surface treatment, and the metal layer is arranged on the surface of the LCP antenna base material. According to the invention, the LCP is used as the antenna base material, the metal layer is deposited after the coupling agent surface treatment, so that the binding force between the metal layer and the LCP base material is strong and can reach 10N, and the structural stability of the antenna is improved. The LCP has good dielectric constant, dielectric loss and other properties, is very beneficial to penetration of electromagnetic signals, and avoids addition of metal chelate or carbon powder and other laser absorption substances, so that the finally manufactured antenna can maintain good dielectric constant, dielectric loss and other electrical properties, the dielectric loss is lower than 0.005, and the transmission efficiency of the electromagnetic signals is high.

Description

technical field [0001] The invention belongs to the field of electronic products, in particular to a method for preparing an antenna containing an LCP substrate. Background technique [0002] Antenna is a very important component of electronic products and a functional part of electronic products for signal transmission. In electronic products such as mobile phones, due to the limitation of the structure of mobile phone products, when designing and manufacturing the antenna, the antenna cannot be made into a simple planar shape, and it needs to be made into a three-dimensional shape according to the structural space of the mobile phone product. [0003] The existing methods for making antennas in the related art mainly include LDS technology (laser direct structuring technology). In this method, additives containing metal chelates, which can be activated and reduced to metal atoms by laser, are mixed into plastic materials such as PA (nylon) and PC (polycarbonate), and then...

AI Technical Summary

Problems solved by technology

This method can not be limited by the product structure, but this method also has the following disadvantages: 1. The antenna circuit pattern is made by laser etching the surface of the antenna substrate, and the production efficiency is low. The uneven rough surface will further reduce the efficiency of the fabricated antenna in terms of signal reception and transmission

2. Due to the addition of metal chelate or carbon powder and other laser-absorbing substances in the plastic material, the dielectric constant and dielectric loss of the plastic material increase, thereby reducing the electrical properties of the plastic material and causing shielding of electromagnetic signals. Antenna transmission efficiency drops

3. Metal layers such as copper and tin are deposited on the surface of the antenna circuit pattern. The bonding force between the metal layer and the substrate is poor, which makes the antenna structure unstable and affects the normal use of the antenna.