一種快速穩(wěn)健的致密焦面陣列饋源設(shè)計(jì)方法

何山紅; 紀(jì)萌茜; 解良玉; 范瑾; 范沖

doi:10.11999/JEIT190026

一種快速穩(wěn)健的致密焦面陣列饋源設(shè)計(jì)方法

doi: 10.11999/JEIT190026

1.
安徽工業(yè)大學(xué)電氣與信息工程學(xué)院 ??馬鞍山 ??243002
2.
中國(guó)科學(xué)院國(guó)家天文臺(tái)FAST項(xiàng)目組 ??北京 ??100012
3.
南京理工大學(xué)通信工程系 ??南京 ??210094

基金項(xiàng)目: 國(guó)家自然科學(xué)基金(U1631115, 11403054)，國(guó)家自然科學(xué)基金－中國(guó)科學(xué)院天文聯(lián)合基金(U1631115)，國(guó)家自然科學(xué)基金與瑞典科研教育國(guó)際合作基金(11611130023)

詳細(xì)信息

作者簡(jiǎn)介:
何山紅：男，1973年生，教授，主要研究方向?yàn)榇笮头瓷涿嫣炀€(xiàn)及饋源、陣列天線(xiàn)及寬帶天線(xiàn)設(shè)計(jì)及研究

紀(jì)萌茜：女，1996年生，碩士生，研究方向?yàn)樘炀€(xiàn)中的優(yōu)化設(shè)計(jì)

解良玉：女，1996年生，碩士生，研究方向?yàn)閷拵炀€(xiàn)、多頻天線(xiàn)和多波束天線(xiàn)設(shè)計(jì)

范瑾：女，1985年生，工程師，博士，研究方向?yàn)榇笮蜕潆娞煳耐h(yuǎn)鏡天線(xiàn)及高性能饋源設(shè)計(jì)及研究

范沖：男，1990年生，博士生，研究方向?yàn)橹芷谛越Y(jié)構(gòu)天線(xiàn)、透鏡天線(xiàn)及反射面的設(shè)計(jì)及研究

通訊作者:
何山紅　antennaeng@163.com

中圖分類(lèi)號(hào): TN823
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出版歷程
- 收稿日期: 2019-01-11
- 修回日期: 2019-04-18
- 網(wǎng)絡(luò)出版日期: 2019-05-23
- 刊出日期: 2019-11-01

A Fast and Robust Design Method for Dense Focal Plane Array Feed

1.
School of Electrical Engineering & Information, Anhui University of Technology, Ma’anshan 243002, China
2.
Department of FAST in the National Astronomy Observatory, Chinese Academy of Sciences, Beijing 100012, China
3.
Department of Communication Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

Funds: The National Natural Science Foundation of China (U1631115, 11403054), The Joint Research Fund in Astronomy under Cooperative Agreement between the National Natural Science Foundation of China and Chinese Academy of Science(U1631115), The Swedish Foundation for International Cooperation with NSFC in Research and Higher Education (11611130023)

摘要

摘要: 致密焦面陣列饋源(DFPAF)融合了多喇叭多波束饋源和相控陣列饋源(PAF)的特點(diǎn)，與多喇叭多波束饋源和常規(guī)相控陣列饋源相比較，它可以同時(shí)提供更多的固定賦形波束進(jìn)一步拓寬視場(chǎng)。在射電天文、雷達(dá)、電子偵察和衛(wèi)星通信等領(lǐng)域引起了極大的關(guān)注。由于其陣列結(jié)構(gòu)與常規(guī)陣列饋源不同，導(dǎo)致設(shè)計(jì)方法也具有特殊性，因此近年來(lái)展開(kāi)了對(duì)其設(shè)計(jì)方法的研究。該文充分利用反射面天線(xiàn)的固有特性，并結(jié)合陣列天線(xiàn)理論，提出一種可以快速、穩(wěn)健地設(shè)計(jì)致密焦面陣列饋源的方法，給出了設(shè)計(jì)原理和設(shè)計(jì)結(jié)果，并和最具代表性的多喇叭多波束饋源進(jìn)行了性能對(duì)比分析，為設(shè)計(jì)致密焦面陣列饋電的大型反射面提供理論和數(shù)據(jù)參考。
- 致密焦面陣列 /
- 多波束饋源 /
- 反射面 /
- 相控陣列
Abstract: The Dense Focal Plane Array Feed (DFPAF), which integrates the characters of multi-beam feed with multiple independent horns and Phased Array Feed (PAF), can simultaneously provide more fixed shaped beams and wider field of view than multi-beam feed with multiple independent horns and PAF. It attracts more attention in radio telescope, radar, electronic reconnaissance, satellite communication and so on. Its unique structure promotes the studies on special design method recently. Combing the theory of array antenna and inherent characteristic of parabolic reflector antenna, a fast design method with robust processing procedure is proposed in this paper. The design principle, calculated results, and comparison between DFPAF and the most representative multi-beam feed with multiple independent horns are presented. All these provide a theoretical basis and reference data for the design of giant reflector with DFPAF.
- Dense focal plane array /
- Multi-beam feed /
- Reflector /
- Phased array

HTML全文

圖 1 拋物面天線(xiàn)坐標(biāo)系

下載: 全尺寸圖片幻燈片

圖 2 饋源結(jié)構(gòu)

下載: 全尺寸圖片幻燈片

圖 3 中心頻率的焦面電場(chǎng)分布

下載: 全尺寸圖片幻燈片

圖 4 中心頻率的初級(jí)輻射方向圖($\varphi $ = 90°平面)

下載: 全尺寸圖片幻燈片

圖 5 拋物面天線(xiàn)在中心頻率的遠(yuǎn)場(chǎng)輻射方向圖($\varphi $=90°)

下載: 全尺寸圖片幻燈片

圖 6 50號(hào)波束中心頻率的立體遠(yuǎn)場(chǎng)輻射方向圖

下載: 全尺寸圖片幻燈片

表 1 多波束反射面天線(xiàn)性能總結(jié)表

波束	饋源類(lèi)型	天線(xiàn)增益(dB)	天線(xiàn)效率(%)	第1旁瓣電平(dB)	半功率波束寬度(°)	波束指向(°)	與中心波束的增益差(dB)
1號(hào)1.05 GHz	焦面場(chǎng)	75.08	74.00	–17.10	0.0596	0.000	0.00
	多喇叭多波束饋源	74.46	64.15	–24.10	0.0612	0.000	0.00
	致密焦面陣列饋源	74.98	72.32	–17.60	0.0606	0.000	0.00
5號(hào)1.05 GHz	焦面場(chǎng)	75.01	72.82	–16.40	0.0600	–0.045	–0.07
	多喇叭多波束饋源	74.38	62.97	–19.90	0.0616	–0.045	–0.08
	致密焦面陣列饋源	74.94	71.66	–16.10	0.0616	–0.045	–0.04
14號(hào)1.05 GHz	焦面場(chǎng)	74.92	71.32	–16.50	0.0599	–0.090	–0.16
	多喇叭多波束饋源	74.20	60.47	–17.60	0.0619	–0.090	–0.26
	致密焦面陣列饋源	74.74	68.43	–20.20	0.0622	–0.090	–0.24
29號(hào)1.05 GHz	焦面場(chǎng)	74.81	69.54	–16.40	0.0598	–0.140	–0.27
	多喇叭多波束饋源	74.00	57.70	–15.40	0.0622	–0.140	–0.46
	致密焦面陣列饋源	74.61	66.41	–17.10	0.0619	–0.140	–0.37
50號(hào)1.05 GHz	焦面場(chǎng)	74.58	65.95	–15.60	0.0617	–0.180	–0.50
	多喇叭多波束饋源	73.78	54.91	–13.50	0.0626	–0.185	–0.68
	致密焦面陣列饋源	74.42	63.57	–15.30	0.0626	–0.180	–0.56
1號(hào)1.25 GHz	焦面場(chǎng)	76.67	75.46	–16.90	0.0500	0.000	0.00
	多喇叭多波束饋源	76.18	67.29	–26.80	0.0527	0.000	0.00
	致密焦面陣列饋源	76.62	74.42	–19.10	0.0514	0.000	0.00
5號(hào)1.25 GHz	焦面場(chǎng)	76.57	73.66	–17.10	0.0500	–0.045	–0.10
	多喇叭多波束饋源	76.05	65.34	–21.50	0.0530	–0.045	–0.12
	致密焦面陣列饋源	76.55	73.36	–18.40	0.0519	–0.045	–0.06
14號(hào)1.25 GHz	焦面場(chǎng)	76.46	71.80	–16.20	0.0502	–0.090	–0.21
	多喇叭多波束饋源	75.84	62.31	–17.20	0.0542	–0.090	–0.33
	致密焦面陣列饋源	76.25	68.37	–18.60	0.0529	–0.090	–0.36
29號(hào)1.25 GHz	焦面場(chǎng)	76.33	69.67	–16.10	0.0505	–0.140	–0.34
	多喇叭多波束饋源	75.60	58.97	–15.00	0.0538	–0.140	–0.57
	致密焦面陣列饋源	76.20	67.66	–19.20	0.0526	–0.135	–0.41
50號(hào)1.25 GHz	焦面場(chǎng)	76.13	66.50	–15.70	0.0512	–0.180	–0.54
	多喇叭多波束饋源	75.29	54.86	–13.00	0.0548	–0.185	–0.88
	致密焦面陣列饋源	75.97	64.17	–15.80	0.0535	–0.185	–0.64
1號(hào)1.45 GHz	焦面場(chǎng)	78.06	77.07	–16.70	0.0426	0.000	0.00
	多喇叭多波束饋源	77.52	68.06	–30.60	0.0468	0.000	0.00
	致密焦面陣列饋源	78.01	76.19	–19.90	0.0440	0.000	0.00
5號(hào)1.45 GHz	焦面場(chǎng)	77.97	75.49	–16.60	0.0426	–0.045	–0.09
	多喇叭多波束饋源	77.39	66.05	–21.60	0.0470	–0.045	–0.13
	致密焦面陣列饋源	77.90	74.28	–18.80	0.0437	–0.045	–0.11
14號(hào)1.45 GHz	焦面場(chǎng)	77.85	73.43	–16.20	0.0427	–0.095	–0.21
	多喇叭多波束饋源	77.16	62.64	–17.20	0.0480	–0.095	–0.35
	致密焦面陣列饋源	77.64	69.96	–20.10	0.0456	–0.095	–0.37
29號(hào)1.45 GHz	焦面場(chǎng)	77.67	70.45	–16.50	0.0488	–0.140	–0.39
	多喇叭多波束饋源	76.86	58.46	–15.00	0.0486	–0.140	–0.65
	致密焦面陣列饋源	77.49	67.59	–17.50	0.0445	–0.140	–0.52
50號(hào)1.45 GHz	焦面場(chǎng)	77.43	66.66	–16.00	0.0439	–0.185	–0.63
	多喇叭多波束饋源	76.44	53.07	–12.80	0.0499	–0.185	–1.07
	致密焦面陣列饋源	77.22	63.52	–13.70	0.0465	–0.180	–0.79

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