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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Wideband microstrip-fed slot antenna with end-fire radiation under dual-resonant modes
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Wideband microstrip-fed slot antenna with end-fire radiation under dual-resonant modes

机译：双谐振模式下具有端火辐射的宽带微带槽天线

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摘要

In this paper, a microstrip-fed narrow slot antenna with end-fire radiation andexpanded bandwidth under dual-resonant modes operation is proposed. At first,the open-ended slot radiator is studied and used to effectively suppress all theundesired even-order modes, reduce the antenna size, and form up the end-fireradiation pattern simultaneously. After that, by symmetrically introducing a pairof slot stubs near the electric-field distributions nodal lines of its second oddordermode, the resonant frequency of second odd-order mode is graduallymoved down. As such, the first and second odd modes could be effectivelymoved in proximity to each other, thus resulting in the improved impedancebandwidth of the slot antenna under dual-mode operation. To validate thepredicted results, the proposed wideband microstrip-fed slot antenna is in finalfabricated and measured. Both simulated and measured results are derived withgood agreement. Measured results indicate that the impedance bandwidth of theslot antenna has achieved an immense enhancement up to about 25.5%(2.43-3.14 GHz). Moreover, the front-to-back ratio (FBR) beyond 6.0 dB has beensuccessfully obtained across the whole operating band for end-fire radiation.
机译：在本文中，一种微带馈送窄槽天线，具有端火辐射和提出了双谐振模式下的扩展带宽。首先，研究了开放式槽散热器并用来有效地抑制所有不期望的偶令模式，减少天线尺寸，并形成最终火灾辐射模式同时。之后，通过对称引入一对电场分布靠近其第二个奇数的电场分布核心线附近的插槽模式，第二个奇数模式的谐振频率逐渐逐渐搬下了。这样，第一和第二奇数模式可以有效地彼此靠近移动，从而导致阻抗改善双模操作下的插槽天线带宽。验证预测结果，所提出的宽带微带送入槽天线是最终的制造和测量。模拟和测量结果都是衍生的良好的一致性。测量结果表明阻抗带宽插槽天线达到了巨大的增强，高达约25.5％（2.43-3.14 GHz）。此外，在6.0 dB之外的前后比率（FBR）已经存在成功地通过整个操作频段获得终端火辐射。

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