| 基于NiCuZn铁氧体的小型化T-DMB天线 |
| |
| 引用本文： | 贾洪帅,刘卫沪,颜铄清,葛晨辰,龚荣洲,冯则坤,王鲜,聂彦.基于NiCuZn铁氧体的小型化T-DMB天线[J].磁性材料及器件,2017,48(4). |
| |
| 作者姓名： | 贾洪帅 刘卫沪 颜铄清 葛晨辰 龚荣洲 冯则坤 王鲜 聂彦 |
| |
| 作者单位： | 1. 华中科技大学 光学与电子信息学院,湖北武汉,430074;2. 中南大学物理与电子学院,湖南长沙,410083 |
| |
| 摘 要： | 采用传统的固相反应法制得了宽频段低损耗的NiCuZn铁氧体材料,研究了Co_2O_3掺杂对NiCuZn铁氧体磁电特性的影响。研究表明,当Co_2O_3掺杂量为1.0 wt%时,该铁氧体在200 MHz下的磁导率和介电常数约为14,磁损耗和介电损耗角正切分别为0.017和0.012。基于此材料设计了一种小型化地面数字多媒体广播(T-MDB)天线。该天线具有结构紧凑、损耗低、带宽宽等优良性能,其辐射模式接近全向,中心频率(195 MHz)的峰值增益达到-0.03 dB,是一种适用于移动手持终端的小型化天线。
|
| 关 键 词： | NiCuZn铁氧体 Co2O3掺杂 磁介电材料 小型化T-DMB天线 移动手持终端 |
Miniaturized T-DMB antenna based on NiCuZn ferrie |
| |
| JIA Hong-shuai,LIU Wei-hu,YAN Shuo-qing,GE Chen-chen,GONG Rong-zhou,FENG Ze-kun,WANG Xian,NIE Yan.Miniaturized T-DMB antenna based on NiCuZn ferrie[J].Journal of Magnetic Materials and Devices,2017,48(4). |
| |
| Authors: | JIA Hong-shuai LIU Wei-hu YAN Shuo-qing GE Chen-chen GONG Rong-zhou FENG Ze-kun WANG Xian NIE Yan |
| |
| Abstract: | A low-loss NiCuZn ferrtie (Ni0.78Cu0.20Zn0.02Fe1.96O3.94) with broad applicable band has been prepared by conventional solid-state reaction method. The effects of Co2O3 additive on the magnetic and dielectric properties of NiCuZn ferrite were investigated. The results show that the ferrite with 1.0 wt% Co2O3 doping possesses permeability and permittivity of around 14, as well as magnetic and dielectric loss tangent of 0.017 and 0.012 at 200 MHz. A miniaturized T-DMB antenna was designed based on this material, which has good performance such as compact size, low loss and wide bandwidth. The radiation pattern is nearly omnidirectional, and maximum gain of-0.03 dB was attained at center frequency (195MHz). The miniaturized antenna is applicable for mobile handset. |
| |
| Keywords: | NiCuZn ferrtie Co2O3 doping magneto-dielectric material miniaturized T-DMB antenna mobile handset |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
