PIER
 
Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 56 > pp. 163-182

MICROSTRIP LINE AND CPW FED ULTRA WIDEBAND SLOT ANTENNAS WITH U-SHAPED TUNING STUB AND REFLECTOR

By R. Chair, A. A. Kishk, K.-F. Lee, C. E. Smith, and D. Kajfez

Full Article PDF (497 KB)

Abstract:
Wideband printed rectangular slot antennas backed with reflectors for unidirectional radiation patterns are investigated. A U- shaped tuning stub is used to improve the matching. Two different feeding mechanisms are introduced. A rectangular slot excited by microstrip line feed with a U-shaped tuning stub gives an impedance bandwidth of 110% ( |S11| < −10 dB). When the rectangular slot is excited by a coplanar waveguide (CPW), it gives an impedance bandwidth of 120%. Both slot antennas radiate broadside across the matching band, with front-to-back ratios of 20 dB.

Citation: (See works that cites this article)
R. Chair, A. A. Kishk, K.-F. Lee, C. E. Smith, and D. Kajfez, "Microstrip Line and CPW Fed Ultra Wideband Slot Antennas with U-Shaped Tuning Stub and Reflector," Progress In Electromagnetics Research, Vol. 56, 163-182, 2006.
doi:10.2528/PIER05060701
http://www.jpier.org/PIER/pier.php?paper=0506071

References:
1. Yoshimura, Y., "A microstirpline slot antenna," IEEE Trans. Microwave Theory and Tech., No. 11, 760-762, 1972.
doi:10.1109/TMTT.1972.1127868

2. Kahrizi, M., T. K. Sarkar, and Z. A. Maricevic, "Analysis of a wide radiating slot in the ground plane of a microstrip line," IEEE Trans. Microwave Theory and Tech., Vol. 41, No. 1, 29-37, 1993.
doi:10.1109/22.210226

3. Shum, S. M., K. F. Tong, X. Zhang, and K. M. Luk, "FDTD modeling of microstrip-line-fed wide-slot antenna," Microwave Opt. Technol. Lett., Vol. 10, 118-120, 1995.

4. Hong, C. S., "Small annular slot antenna with capacitor loading," Electron. Lett., Vol. 36, No. 2, 110-111, 2000.
doi:10.1049/el:20000147

5. Lin, S. Y. and K. L. Wong, "A dual-frequency microstrip-linefed printed slot antenna," Microwave Opt. Technol. Lett., Vol. 28, No. 6, 373-375, 2001.
doi:10.1002/1098-2760(20010320)28:6<373::AID-MOP1044>3.0.CO;2-1

6. Ooi, B. L., K. Chew, and M. S. Leong, "Log-periodic slot antenna array," Microwave Opt. Technol. Lett., Vol. 25, No. 1, 24-27, 2000.
doi:10.1002/(SICI)1098-2760(20000405)25:1<24::AID-MOP8>3.0.CO;2-N

7. Rao, P. H., "Feed effects on the dimensions of wideband slot antennas," Microwave and Opt. Technol. Lett., Vol. 40, No. 1, 2004.

8. Rao, P. H., V. F. Fusco, and R. Cahill, "Linearly polarized radialstub-fed high-performance wideband slot antenna," Electron. Lett., Vol. 37, 335-337, 2001.
doi:10.1049/el:20010234

9. Jang, Y. W., "A broadband cross-shaped microstripline-fed nooffset ring slot antenna," Microwave Opt. Technol. Lett., Vol. 36, No. 1, 61-63, 2003.
doi:10.1002/mop.10671

10. Sze, J. Y. and K. L. Wong, "Bandwidth enhancement of a microstrip-line-fed printed wide-slot antenna," IEEE Trans. Antennas and Propagat., Vol. 49, No. 7, 1020-1024, 2001.
doi:10.1109/8.933480

11. Jang, Y. W., "Broadband cross-shaped microstrip-fed slot antenna," Electron. Lett., Vol. 36, No. 25, 2056-2057, 2000.
doi:10.1049/el:20001477

12. Qing, X., M. Y. W. Chia, and X. Wu, "Wide-slot antenna for UWB applications," 2003 IEEE AP-SInt. Symp. Dig., 834-837, 2003.

13. Tzeremes, G., T. S. Liao, P. K. L. Yu, and C. G. Christodoulou, "Computation of equivalent circuit models of optically driven CPW-fed slot antennas for wireless communications," IEEE Antennas and Wireless Propagat., Vol. 2, 140-142, 2003.
doi:10.1109/LAWP.2003.817614

14. Huang, J. F. and C. W. Kuo, "CPW-fed slot antenna with CPW tuning stub loading," Microwave Opt. Technol. Lett., Vol. 19, No. 4, 257-258, 1998.
doi:10.1002/(SICI)1098-2760(199811)19:4<257::AID-MOP4>3.0.CO;2-J

15. Allen, C. M., A. A. Eldek, A. Z. Elsherbeni, and C. E. Smith, "A wideband coplanar-waveguide-fed multi-slot antenna for radar applications," Microwave Opt. Technol. Lett., Vol. 39, No. 1, 24-27, 2003.
doi:10.1002/mop.11116

16. Bhobe, A. U., C. L. Holloway, M. Piket-May, and R. Hall, "Coplanar waveguide fed wideband slot antenna," Electron. Lett., Vol. 36, No. 16, 1340-1342, 2000.
doi:10.1049/el:20000984

17. Chiou, J. Y., J. Y. Sze, and K. L. Wong, "A broad-band CPW-fed strip-loaded square slot antenna," IEEE Trans. Antennas and Propagat., Vol. 51, No. 4, 719-721, 2003.
doi:10.1109/TAP.2003.812232

18. Chen, H. D., "Broadband CPW-fed square slot antennas with a widened tuning stub," IEEE Trans. Antennas and Propagat., Vol. 51, No. 8, 1982-1985, 2003.
doi:10.1109/TAP.2003.814747

19. IE3D 10.1, Zeland Software Inc., Fremont, CA..

20. Fidelity 4.2, Zeland Software Inc., Fremont, CA..


© Copyright 2014 EMW Publishing. All Rights Reserved