【作者】 刘能武； 祝雷； 蔡伟华；

【Author】 Liu Neng-Wu;Zhu Lei;Choi Wai-Wa;Faculty of science and technology in the university of Macau;

【机构】 澳门大学科技学院；

【摘要】 本文对PIFA天线的TM_0,1/2和TM_2,1/2模进行分析和研究。首先,利用短路销钉加载技术提高了TM_0,1/2模的谐振频点。其次,利用贴片辐射边展宽技术降低了TM_2,1/2模的谐振频点。这就将两辐射模相互靠近形成宽带特性。最后,根据上述理论,对提出的PIFA天线进行仿真计算和加工测试。结果表明其实现了宽频带（15.3%）、频带内方向图稳定、低剖面（0.036λ0）等特性。更多还原

【Abstract】 In this paper, the TM_0,1/2 and TM_2,1/2 modes of an Inverted-F antenna（PIFA） are extensively studied and analyzed.Initially, the resonant frequency of TM_0,1/2mode is progressively pushed up by adding the shorting pins. After that, the resonant frequency of TM_2,1/2 mode is reduced by widening the radiating patch. Thus, the dual modes are reallocated in proximity to each other for wide-bandwidth antenna design. In final, the proposed PIFA is fabricated and measured. The results show that the antenna achieves a wide impedance bandwidth of about 15.3%. Most importantly, a stable radiation pattern with the low profile of about 0.036 λ₀ is also obtained.更多还原