一种曲折线型LTCC芯片天线-西安电子科技大学电子工程学院.PDF

一种曲折线型LTCC芯片天线 1 2 邹海英，褚庆昕 (1.西安电子科技大学电子信息工程学院,西安 710071;2.广州华南理工大学电子和信息学院,广州 510640) 摘 要:在本文中，设计了一种蓝牙芯片全向天线。该天线由曲折导线嵌入在 LTCC结构中组成。它是 表面贴装元件（SMD）, 适合应用于各种高灵敏度、低剖面的蓝牙无线收发模块。外形小巧，尺寸只 有 5.2 mm ×2.0 mm ×1.2 mm，重量为 0.04 克。该芯片天线具有尺寸小，重量轻，带宽大，全向性， 电气特性稳定等优点。在蓝牙芯片天线结构基础上，通过进一步深入研究，提出了一种新型的适用 于 Bluetooth2.45GHz/WLAN5.25GHz 通信系统的双频介质全向芯片天线。通过分析天线结构给出了蓝 牙芯片天线和双频芯片天线两种结构的等效电路。 关键词：蓝牙芯片全向天线，曲折导线， LTCC(低温共烧陶瓷)，双频芯片天线，等效电路。 A Meander Line Chip Antenna Using LTCC Technology 1 2 Hai-Ying Zou , Qing-Xin Chu 1. School of Electronic Engineering, Xidian University, Xi’an 710071; 2. College of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640 Abstract: In this paper, a kind of chip omni-directional antenna for Bluetooth application is designed. It uses a strip meander conductor line embedded in Low Temperature Co-fired Ceramic (LTCC) structure. The Bluetooth chip antenna is surface mounted device, which is 5.2mm×2.0mm×1.2 mm in size and only 0.04 gram in weight. These chip omni-directional antennas are suitable for mobile communication handsets where limited antenna size is a premium. On the base of Bluetooth chip antenna structure, we make further research, proposed a novel dual band dielectric chip antenna for 2.45GHz Bluetooth and 5.25GHz WLAN applications, which consists of double strip meander conductor lines embedded in Low Temperature Co-Fired Ceramic (LTCC) structure. Equivalent circuit of the Bluetooth chip antenna and dual band chip antenna is presented for input impedance. Key words: Bluetooth chip omni-directional antenna, Meander conductor lines, LTCC ，dual frequency chip antenna, equivalent circuit