微带开环谐振器结合的带阻UWB天线设计

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"Band-Notched UWB天线集成微带开环谐振器技术在超宽带天线设计中的应用" 本文主要讨论了一种利用微带开环谐振器设计的带阻UWB（超宽带）天线。这种设计旨在解决UWB天线与特定频段的干扰问题，例如GSM900、UMTS2100、WiBro和蓝牙等通信标准的要求。在UWB通信系统中，带阻特性是重要的，因为它允许天线在宽频率范围内工作，同时避免与已分配给其他服务的频段重叠。在天线设计中，选择合适的电感和电容元件类型和位置是关键。通过巧妙地整合微带开环谐振器，可以实现特定频率范围的阻断，从而实现对UWB信号的精细控制。开环谐振器结构简单，易于集成，并且能有效调节天线的阻抗匹配和带宽特性。文中提及了几个相关研究案例，如平面天线在无线通信中的应用（K.L. Wong的《Planar Antennas for Wireless Communications》），以及针对便携式设备的天线设计（Z.N. Chen的《Antennas for Portable Devices》）。这些研究提供了关于小型化、多频段天线设计的宝贵见解。 P.L. Teng和K.L. Wong在2002年提出的一种平面单极子天线，被折叠成紧凑结构，用于非常低剖面的多频段手机天线，展示了如何在有限空间内实现高效能。而S.H. Yeh和K.-L. Wong在同一年提出的紧凑型双频PIFA（平面倒F天线）则利用芯片电感加载的矩形螺旋带，实现了更小的尺寸和频率选择性。 H. Choi和H. Kim在2005年的工作则展示了如何利用互耦电容设计双频芯片天线，这种方法有效地减小了天线的尺寸并提高了频率选择性。这篇论文通过引用一系列相关研究，强调了微带开环谐振器在实现带阻UWB天线设计中的作用，这种设计能够满足现代移动通信设备对多功能、小型化的需求。同时，这也表明了在天线设计领域，理论研究与实际应用之间的紧密联系，以及持续创新对于克服技术挑战的重要性。

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 59, NO. 8, AUGUST 2011 3045

choices in the type and position of reactive components. The proposed

method has been successfully applied in designing monopole antenna

for a mobile handset satisfying GSM900/UMTS2100/WiBro/Blue-

tooth requirements.

CKNOWLEDGMENT

The authors would like to thank RadiNa Inc. Ltd. in Korea and the

Brain Korea 21 project for manufacture and measurement support.

REFERENCES

[1] K. L. Wong, Planar Antennas for Wireless Communications.

Hoboken, NJ: Wiley, 2003, pp. 26–53.

[2] Z. N. Chen, Antennas for Portable Devices. Chichester, U.K.: Wiley,

2007, p. 142.

[3] P. L. Teng and K. L. Wong, “Planar monopole folded into a compact

structure for very-low-proﬁle multiband mobile-phone antenna,” Mi-

crow. Opt. Technol. Lett., vol. 33, pp. 22–25, Jan. 2002.

[4] S. H. Yeh and K.-L. Wong, “Compact dual-frequency PIFA with a chip-

inductor-loaded rectangular spiral strip,” Microw. Opt. Technol. Lett.,

vol. 33, pp. 394–397, May 2002.

[5] H. Choi and H. Kim, “Dual-band chip antenna design using in-

tercoupling capacitance,” Microw. Opt. Technol. Lett., vol. 51, pp.

1467–1470, Mar. 2009.

[6] J. S. McLean, “A re-examination of the fundamental limits on the radi-

ation Q of electrically small antennas,” IEEE Trans. Antennas Propag.,

vol. 44, p. 672, May 1996.

[7] P. Vainikainen, J. Ollikainen, O. Kivekas, and K. Kelander, “Res-

onator-based analysis of the combination of mobile handset antenna

and chassis,” IEEE Trans. Antennas Propag., vol. 50, pp. 1433–1444,

Oct. 2002.

[8] A. D. Yaghjian and S. R. Best, “Impedance, bandwidth and Q of an-

tennas,” IEEE Trans. Antennas Propag., vol. 53, pp. 1298–1324, Apr.

2005.

[9] H. Choi, S. Jeon, S. Kim, and H. Kim, “Controlling resonance frequen-

cies in antennas to achieve wideband operation,” Electron. Lett., vol.

45, pp. 716–717, Jul. 2009.

[10] R. Schmitt, Electromagnetics Explained: A Handbook for Wireless/RF,

EMC and High-Speed Electronics. Boston, MA: Newnes, 2002, pp.

229–230.

[11] G. K. H. Lui and R. D. Murch, “Compact dual-frequency PIFA de-

signs using LC resonators,” IEEE Trans. Antennas Propag., vol. 49,

pp. 1016–1019, Jul. 2001.

[12] S. Dong-Uk and P. Seong-Ook, “A triple-band internal antenna: Design

and performance in presence of the handset case, battery, and human

head,” IEEE Trans. Electromagn. Compat., vol. 47, pp. 658–666, Mar.

2005.

[13] J. Rahola and J. Ollikainen, “Optimal antenna placement for mobile

terminals using characteristic mode analysis,” in Proc. EuCAP, Nice,

France, Nov. 2006, pp. 1–6.

[14] M. Makimoto and S. Yamashita, Microwave Resonators and Filters

for Wireless Communication Theory, Design and Application.New

York: Springer, 2001, pp. 84–106.

[15] M. Sagawa, K. Takahashi, and M. Makimoto, “Miniaturized hairpin

resonator ﬁlters and their application to receiver front-end MIC’s,”

IEEE Trans. Microw. Theory Tech., vol. 37, pp. 1991–1997, Dec.

1989.

[16] V. Pathak, S. Thornwall, M. Krier, S. Rowson, G. Poilasne, and L.

Desclos, “Mobile handset system performance comparison of a linearly

polarized GPS internal antenna with a circularly polarized antenna,”

in Proc. IEEE AP-S Int. Symp., Columbus, OH, Jun. 2003, vol. 3, pp.

666–669.

Band-Notched UWB Antenna Incorporating a Microstrip

Open-Loop Resonator

James R. Kelly, Peter S. Hall, and Peter Gardner

Abstract—Ultrawideband (UWB) systems require band notch ﬁlters

in order to prevent sensitive components, within the front-end of the

receiver, from being overloaded by strong signals. Recently, it has been

shown that these ﬁlters can be integrated into the UWB antenna, to great

advantage. This communication presents a new method for forming a

notch band within the frequency response of a UWB antenna. An open

loop notch band resonator is located on the back of the substrate, used

to support the UWB monopole. The act of separating the resonator from

the antenna means that they can now be designed in isolation, using the

standard approach described in the literature, and then combined. A

prototype was constructed and good agreement has been obtained between

simulation and measurement. The radiation patterns are consistent over

the frequency range of interest.

Index Terms—Band-stop ﬁlters, coplanar waveguides, monopole an-

tennas, ultrawideband (UWB) antennas.

I. I

NTRODUCTION

There is much interest in the use of ultrawideband (UWB) signals

(from 3.1 to 10.6 GHz) for short range, high-data rate communications

[3]. UWB radar systems have been used to improve the detection of

early stage breast cancer [1], [2]. UWB ground penetrating radar can

be used to detect mines and damaged utility pipes. Interference from

a strong narrowband signal, within the UWB band, could overload the

receiver and band-stop ﬁlters have been suggested to mitigate for this.

This ﬁlter might be a separate component, connected in series with the

antenna [4], which will increase the size, weight, and complexity of

the system or it could be integrated into the antenna’s feed-line [5].

A substrate integrated waveguide (SIW) cavity ﬁlter is used in [5],

within the feed-line of an UWB monopole antenna, but antenna per-

formance degradations result. An alternative is to integrate some form

of band-stop ﬁlter into the radiating element. The majority of designs

use a resonant slot within the planar monopole antenna [6]–[15]. Un-

fortunately most of the current solutions are limited by having: 1) poor

return loss, i.e.,

1.5 dB [5], [7], [13], [14], [25] or

2.5 dB [9], [10],

[12], [16]; 2) poor gain suppression, i.e.,

5 dB [10], [14] or

10 dB

[6], [12], [13], [16], [17]; 3) or low quality factor (

10) [14], [15] at

the notch frequency. A further disadvantage associated with some of

the designs is that the geometry is complex and/or three dimensional

[5], [7], [8], [11]–[13], [15], [17], [19].

This communication presents a new approach for producing a notch

band within an UWB antenna. The key innovation is to situate the notch

band resonator on the rear of the substrate which is used to support

the UWB antenna. This change of approach enables one to design the

resonator and antenna in isolation, before combining them later. The

Manuscript received March 03, 2010; revised November 10, 2010; accepted

December 28, 2010. Date of publication May 10, 2011; date of current version

August 03, 2011. This work was supported by the U.K. Engineering and Phys-

ical Sciences Research Council (EPSRC) under Grant EP/F017502/1.

J. R. Kelly is with the Department of Electronic and Electrical En-

gineering, The University of Shefﬁeld, Shefﬁeld S1 3JD, U.K. (e-mail:

james.kelly@shefﬁeld.ac.uk).

P. S. Hall and P. Gardner are with the Department of Electronic, Electrical

and Computer Science, The University of Birmingham, Birmingham B15 2TT,

U.K..

Color versions of one or more of the ﬁgures in this communication are avail-

able online at http://ieeexplore.ieee.org.

Digital Object Identiﬁer 10.1109/TAP.2011.2152326

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