一種共面波導(dǎo)饋電的雙陷波漸變槽天線

李振亞; 竺小松; 張建華

doi:10.11999/JEIT171055

一種共面波導(dǎo)饋電的雙陷波漸變槽天線

doi: 10.11999/JEIT171055

國(guó)防科技大學(xué)電子對(duì)抗學(xué)院 ??合肥 ??230037

基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61671454)

詳細(xì)信息

作者簡(jiǎn)介:
李振亞：男，1989年生，博士生，研究方向?yàn)閷拵炀€、共形微帶天線的理論分析與仿真計(jì)算

竺小松：男，1963年生，研究員，博士生導(dǎo)師，研究方向?yàn)榍度胧街悄苄盘?hào)處理、智能蒙皮技術(shù)

張建華：女，1962年生，教授，研究方向?yàn)殡姶艌?chǎng)理論與天線技術(shù)

通訊作者:
李振亞　 lizhenya7189@126.com

中圖分類號(hào): TN823
計(jì)量
- 文章訪問(wèn)數(shù): 1762
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- PDF下載量: 48
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2017-11-14
- 修回日期: 2018-04-26
- 網(wǎng)絡(luò)出版日期: 2018-05-30
- 刊出日期: 2018-08-01

A Co-planar Waveguide Fed Dual Band-notched Tapered Slot Antenna

Institute of Electronic Countermeasure, National University of Defense Technology, Hefei 230037, China

Funds: The National Natural Science Foundation of China (61671454)

摘要

摘要: 為了濾除WIMAX(3.3～3.8 GHz)和WLAN(5.125～5.825 GHz)窄帶信號(hào)對(duì)超寬帶系統(tǒng)的干擾，該文提出一款共面波導(dǎo)饋電的小型化雙陷波漸變槽天線。共面波導(dǎo)結(jié)構(gòu)可以有效地?cái)U(kuò)展天線的帶寬，實(shí)現(xiàn)對(duì)整個(gè)UWB(3.1～10.6 GHz)頻段的全覆蓋。通過(guò)在天線的饋線上開(kāi)L型縫隙和在輻射貼片上開(kāi)一對(duì)E字型縫隙的方法，有效實(shí)現(xiàn)了在3.15～3.97 GHz和4.94～6.05 GHz頻段的雙陷波特性，能夠抑制WIMAX和WLAN對(duì)超寬帶系統(tǒng)的干擾。該天線結(jié)構(gòu)簡(jiǎn)單緊湊，尺寸非常小，僅為40 mm×18 mm×0.813 mm。仿真和實(shí)測(cè)結(jié)果表明該天線在超寬帶波段內(nèi)具有良好的陷波特性、增益特性，可以應(yīng)用于小型化超寬帶系統(tǒng)中。文中方法對(duì)于陷波漸變槽天線的研究具有一定的借鑒意義。
- 漸變槽天線 /
- 共面波導(dǎo) /
- 雙陷波 /
- 小型化
Abstract: In order to filter out the interference of WIMAX (3.3～3.8 GHz) and WLAN (5.125～5.825 GHz) narrowband signals to Ultra WideBand(UWB) system, a Co-Planar Waveguide (CPW) fed miniaturized tapered slot antenna with dual band-notched characteristics is proposed. The CPW structure can effectively extend the bandwidth of the antenna and realize the full coverage of the whole UWB (3.1～10.6 GHz) frequency band. The dual band-notched characteristics (3.15～3.97 GHz and 4.94～6.05 GHz) are effectively achieved by etching the L-shaped slot in the antenna feeder and opening a pair of E-shaped slots in the radiating patch, which can inhibit WIMAX and WLAN interference to the UWB system. The antenna is simple and compact, and the size is very small, only 40 mm×18 mm×0.813 mm. The simulated and measured results show that the antenna has good notch and gain characteristics in the ultra wideband band, and can be used in miniaturized UWB system. The method has certain reference significance for the research of notched tapered slot antenna.
- Tapered slot antenna /
- Co-Planar Waveguide (CPW) /
- Dual band-notched /
- Compact

HTML全文

圖 1 天線結(jié)構(gòu)圖

下載: 全尺寸圖片幻燈片

圖 2 天線的設(shè)計(jì)流程

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圖 3 4種不同天線和參數(shù)優(yōu)化駐波比曲線

下載: 全尺寸圖片幻燈片

圖 4 輻射貼片表面電流分布圖

下載: 全尺寸圖片幻燈片

圖 5 天線實(shí)物圖

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圖 6 天線駐波比實(shí)測(cè)與仿真對(duì)比圖

下載: 全尺寸圖片幻燈片

圖 7 天線的峰值增益

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圖 8 天線E面和H面輻射方向圖

下載: 全尺寸圖片幻燈片

表 1 優(yōu)化后的天線單元參數(shù)

參數(shù)	數(shù)值(mm)	參數(shù)	數(shù)值(mm)
L	18.0	W	40.0
L₁	2.2	W₁	11.0
L₂	2.7	W₂	3.4
L₃	3.5	W₃	3.8
L₄	6.0	W₄	8.5
L₅	2.0	S	3.4
L₆	4.2	d	3.0

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表 2 與相關(guān)文獻(xiàn)的對(duì)比

文獻(xiàn)	尺寸(mm³)	工作頻率(GHz)	陷波波段(GHz)	抑制增益(dB)
[11]	39×38×0.813	3.05～10.3	5～6	15.0
[12]	50×50×0.8	2.4～11.2	4.6～6.2	13.5
[13]	50×50×0.8	3～11	4.3～5.4	3.8
[14]	43×40×0.508	3～11	5.125～5.350/5.725～5.825	10.0/7.6
[15]	66.3×66.3×0.813	3～11	3.6～3.9/5.6～5.8	7.0/5.4
[16]	50×50×0.8	2.4～11.6	3.1～4.0/5.1～6.2	7.5/10.0
[17]	57.4×55×1.524	3.3～10.8	4.17～4.37/6.0～6.8	—/10.5
本文	40×18×0.813	2.8～9.7	3.15～3.97/4.94～6.05	16.0/16.5

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參考文獻(xiàn)(17)

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