pifa

Design Of The Matching Network Of PIFA Using Parametric Approach

参量法在PIFA天线匹配网络设计中的应用

I introduce the practical design method by the PMA / PIFA design and manufacture .

通过平面印刷单极天线和平面倒F天线设计和加工制作，介绍了当前手机天线的实际设计方法。

Designing of the PIFA Antenna and Comparison of the Bandwidth

PIFA天线的设计及带宽的比较

Two antennas adopt PIFA structure , the performance of the antenna in the simulation environment and application environment are in good performance .

两款天线均采用PIFA结构，天线的性能在仿真环境和应用环境中都表现良好。

And planar inverted F antenna ( PIFA ) is one kind of internal antennas most widely used .

对于手机终端来说，内置式天线已成为主流，而平面倒F天线（PIFA）是其中应用最为广泛的一种。

As the most popular mobile phone antenna , PIFA and monopole antenna are analyzed .

重点介绍了两种最常用的手机天线，即PIFA天线和单极子天线的理论分析。

A practical compact PIFA design

一种实用化紧凑型PIFA天线设计

MEMS Multi-band Frequency Reconfigurable PIFA ; Research on Condenser High Sensitivity Low-frequency Microphone Based on MEMS

MEMS可重构多频PIFA天线研究基于MEMS的高灵敏度电容式低频传声器

First of all , a novel PIFA is proposed and its prototype is used in the dual-antenna system .

首先提出了一种新型的倒F型天线并将其应用于双天线系统。

It is also in Guangdong rowing team , Pifa boat teams and the torrent team sports training base .

它还是广东赛艇队、皮筏艇队和激流队的运动训练基地。

The results show that the PIFA integrated with EBG structures can reduce the SAR and improve the antenna gain and efficiency .

研究表明，加载EBG结构的新型PIFA天线，人脑比吸收率有所降低，同时提高了天线的增益和效率。

This Paper proposes a compact and practical PIFA ( Planar Inverted F Antenna ) design used in the 1.9 GHz .

提出了一种工作于1.9GHz，实用的紧凑型PIFA天线的设计。

AMI is decided by PIFA and SMCD , and has a positive correlation with the two factors .

投资区域乘数的决定因素为投资流动到特定区域的比例和社会边际消费倾向，且与此两因素均呈正相关关系。

In addition , by means of cutting slots on the ground plane suitably , a new kind of broadband PIFA was designed .

此外，利用地板开槽技术，设计了一种新型宽频PIFA天线。

A novel tri-band planar inverted F-antenna ( PIFA ) is presented .

提出一种新型平面倒置F型三频手机天线（PIFA）。

A dual-frequency RFID ( radio frequency of identification ) tag antenna with planar inverted-F antenna ( PIFA ) structure is realized .

设计和实现了基于平面倒F天线（PIFA）结构的双频段RFID标签天线。

Based on the PIFA structure , a pattern reconfigurable antenna can be controlled by RF diode switch is designed , with bandwidth expanded at the same time .

首先以PIFA天线为基本结构，设计了能通过控制二极管开关状态来改变方向图的可重构天线，并实现了天线带宽的拓展。

Then respectively take the example of the printed circuit antenna ( PIFA ) and Monopole antenna , their characteristics of SAR and HAC are introduced .

然后分别以印刷电路天线（PIFA）和单极子天线为例，介绍了各自的SAR和HAC特性。

The planar inverted-F antenna ( PIFA ) for wireless body-centric network has been simulated by the Finite Difference Time Domain ( FDTD ) method .

仿真了用于构建人体中心无线网络的蓝牙通信系统平面倒F天线。

PIFA ( Planar Inverted F Antenna ), which has low profile , small size , easy to design and manufacture and many other advantages , is widely used in mobile communication .

平面倒F天线（PlanarInvertedFAntenna，以下简称PIFA）具有低剖面，体积小，易于设计制作等优点，在移动通信终端设备中被广泛应用。

Since the MEMS technology has not been used in antenna field widely , the MEMS frequency reconfigurable PIFA in this paper has considerable referenced value to the application of MEMS antenna .

MEMS技术现在还没有大规模应用于天线领域，本文所设计的MEMS频率可重构PIFA天线是MEMS技术在天线领域应用的有益实践，具有一定的借鉴意义。

Finally , this paper designs two antennas including a monopole antenna and a planar inverted F antenna ( PIFA ) assisted by the GA / HFSS optimizer .

最后，本文利用GA/HFSS优化程序辅助设计了一款微带单极天线和一款平面倒F天线（PIFA），他们都符合宽频带、小型化的设计目标。

In terms of the dual-antenna system , coupling effect between two antennas is a key point to consider . To reduce the coupling effect , the prototype of single PIFA is rearranged .

对于双天线系统，研究的重点放在两天线间的耦合问题上，为了减小耦合，对单个倒F天线的原型做了巧妙的调整，使得耦合控制在所要求的范围内。

With the fluctuating of proportion of investment flows into an area ( PIFA ) and social marginal consumption trend ( SMCD ), AMI fluctuates in a special region .

针对投资流动到特定区域比例和社会边际消费倾向的变化，投资区域乘数有特定的波动区间。

Then , a compact triple-frequency PIFA ( Planar Inverted-F Antenna ) is proposed for WLAN 2.4/5 GHz and probably Wimax 3.5 GHz band .

之后本文又设计了一种基于PIFA结构的小型化三频微带天线，该天线可以应用于WLAN2.4/5GHz和将来可能的Wimax3.5GHz频段。

The relationship between antenna parameters and performance of antennas are analyzed and discussed . The two new PIFA antennas have been fabricated to conduct experiments . The measurement results are in good agreement with simulation results . 3 .

研究并总结了这两个天线结构参数对天线性能的影响，并制作了天线进行测试，测试结果与仿真结果吻合较好。

In this paper , put PIFA antenna as the research object , the method to improve the SAR / HAC is studied in detail , to provide the reference and instruction for designing antennas satisfying the Electromagnetic Compatibility .

本文以PIFA天线形式为研究对象，详细的研究改善SAR/HAC的方法，为设计满足电磁兼容性天线提供参考和指导。

The design of a novel single-feed dual-band planar inverted-F antenna ( PIFA ) is presented . Current distribution and radiation patterns are calculated by the finite-difference time-domain ( FDTD ) method to verify the design theory .

设计了一种新型单馈点双频平面倒F手机天线（PIFA），用时域有限差分方法（FDTD）计算了该天线的电流分布和辐射方向图，以验证设计原理。

Plane inverted F antennas are applied extensively on handle terminal equipments in wireless communication . The application of AMCs on PIFA can decrease longitudinal size or planar size of antenna , which is advantaged in actual application .

平面倒F天线是目前无线通信中手持终端设备广泛使用的天线，通过应用AMC结构可以有效的降低天线的纵向尺寸或平面尺寸，为平面倒F天线的使用提供了更为有利的条件。

In this thesis top software is developed that compatible with the reader . And printed circuit board according with theoretical Design . Finally , PIFA antenna and monopole slot antenna , which are suitable for minimization mobile reader , were develop .

在此基础上开发了与之配套的阅读器上层软件，并根据理论设计制作了印刷电路板。最后研制了PIFA天线和单极缝隙天线两种适合小型化移动阅读器使用的天线。