Abstract




 
   

IJE TRANSACTIONS A: Basics Vol. 27, No. 10 (October 2014) 1565-1572   

downloaded Downloaded: 190   viewed Viewed: 2211

  MULTI ATTRIBUTE ANALYSIS OF A NOVEL COMPACT UWB ANTENNA WITH VIA-FED ELEMENTS FOR DUAL BAND NOTCH FUNCTION (RESEARCH NOTE)
 
Ch. Ghobadi and M. Majidzadeh
 
( Received: February 11, 2014 – Accepted: May 22, 2014 )
 
 

Abstract    A compact microstrip-fed antenna with dual notched bands is proposed. First, a simple basic configuration is presented for Ultra Wide Band (UWB) applications and then the dual band notched structure is extended from the UWB one. The basic structure of the UWB antenna consists of a simple square radiating patch and a ground plane with a wide square slot on back of the substrate. A semi-circle shaped slot is cut from the ground plane to improve the antenna impedance matching. In the sequel, aimed at filtering Worldwide Interoperability for Microwave Access (WiMAX) and Wireless Local Area Network (WLAN), via-fed inverted T-shaped element and two rectangular stubs are embedded in the antenna structure. The presented antenna is printed on a 20 × 20 × 0.8 mm3 FR4 substrate and operates over the frequency range of 2.9-16 GHz with WiMAX WLAN notched. To compare the performance of the proposed UWB antenna with respect to some previous designes, a novel framework based on the Analytical Hierarchy Process (AHP) is proposed. Using AHP methodology, the important operational aspects of antennas are taken into account simultaneously, resulting in a comprehensive comparison. Expert Choice software is used to apply the AHP technique.

 

Keywords    Analytical hierarchy Process, Dual band-notch, Expert choice software, UWB antenna, Via-fed elements

 

چکیده    چكيده در اين مقاله ساختار جديدی از يک آنتن ميکرواستريپ کوچک دارای دو ناچ فرکانسی ارائه شده است. در ابتدا يک آنتن پايه برای حوزه فرکانسی فرا پهن باند ارائه شده و سپس ساختار آنتن دارای ناچ فرکانسی از ساختار پايه به وجود آمده است. ساختار پايه آنتن فرا پهن باند از يک پچ تشعشتعي مربعي ساده و يک صفحه زمين دارای اسلات در پشت زيرلايه تشکيل شده است. يک شکاف نيم دايره­ای درست در پشت لبه پايينی پچ تشعشعي از صفحه زمين بريده شده است که باعث بهبود تطبيق امپدانسی مي­شود. سپس با هدف فيلتر کردن باندهای فرکانسی WiMAX و WLAN از باند فرکانسی فرا پهن باند، يک المان T وارونه و دو بازوی مستطيلی تغذيه شونده با via در ساختار آنتن جاسازی شده­اند. آنتن ارئه شده برروی زيرلايه FR4 به اندازه 8/0×20×20 ميليمتر مکعب چاپ شده است و پهنای باند 16-9/2 گيگاهرتز را به جز باندهای فرکانسی فيلتر شده WiMAX و WLAN را پوشش مي­دهد. برای مقايسه عملکرد آنتن ارائه شده در اين مقاله با برخی از ساختارهای ارائه شده قبلی يک چارچوب جديد بر پايه فرآيند تحليل سلسله مراتبی (AHP) ارائه شده است. با استفاده از روش AHP مي­توان آنتن­های مورد نظر را به طور همزمان نسبت به جنبه­های عملکردی مختلف مقايسه کرد و به اين ترتيب مقايسه­ای کامل و جامع انجام داد. برای اعمال متد AHP از نرم­افزار Expert Choice استفاده شده است.

References   

 

1.     Sim, C., Chung, W.-T. and Lee, C.-H., "Compact slot antenna for uwb applications", Antennas and Wireless Propagation Letters, IEEE,  Vol. 9, (2010), 63-66.

2.     Ojaroudi, M., Bashiri, S., Ojaroudi, N. and Partovi, M., "Octave-band, multi-resonance cpw-fed small slot antenna for uwb applications", Electronics Letters,  Vol. 48, No. 16, (2012), 980-982.

3.     Zhong, S.-S., Liang, X.-L. and Wang, W., "Compact elliptical monopole antenna with impedance bandwidth in excess of 21: 1", Antennas and Propagation, IEEE Transactions on,  Vol. 55, No. 11, (2007), 3082-3085.

4.     Paran, K. and Abolghasemi, A., "A novel volcano smoke antenna with optimal shape", Parameters,  Vol. 9, (2012), 12.

5.     Fakharian, M., Rezaei, P., Azadi, A. and Dadras, M., "A capacitive fed microstrip patch antenna with air gap for wideband applications", International Journal of Engineering,  Vol. 27, No. 5, (2014).

6.     Garg, R.R., "Antenna miniaturization using fractals (research note)", International Journal of Engineering-Transactions C: Aspects,  Vol. 25, No. 1, (2012), 39.

7.     Xu, J., Shen, D., Zhang, X. and Wu, K., "A compact disc ultrawideband (uwb) antenna with quintuple band rejections", Antennas and Wireless Propagation Letters, IEEE,  Vol. 11, (2012), 1517-1520.

8.     Samadi Taheri, M.M., Hassani, H.R. and Nezhad, S.M.A., "Uwb printed slot antenna with bluetooth and dual notch bands", Antennas and Wireless Propagation Letters, IEEE,  Vol. 10, (2011), 255-258.

9.     Emadian, S.R., Ghobadi, C., Nourinia, J., Mirmozafari, M. and Pourahmadazar, J., "Bandwidth enhancement of cpw-fed circle-like slot antenna with dual band-notched characteristic", Antennas and Wireless Propagation Letters, IEEE,  Vol. 11, (2012), 543-546.

10.   Majidzadeh, M., Ghobadi, C. and Urmia, I., "A novel uwb cpw-fed ring-shaped antenna with band-notched characteristics", Turkish Journal of Electrical Engineering and Computer Sciences,  Vol. 21, No. 6, (2013), 1595-1602.

11.   Ryu, K.S. and Kishk, A.A., "Uwb antenna with single or dual band-notches for lower wlan band and upper wlan band", Antennas and Propagation, IEEE Transactions on,  Vol. 57, No. 12, (2009), 3942-3950.

12.   Liao, X.-J., Yang, H.-C., Han, N. and Li, Y., "Uwb antenna with dual narrow band notches for lower and upper wlan bands", Electronics Letters,  Vol. 46, No. 24, (2010), 1593-1594.

13.   Majidzadeh, M., Ghobadi, C. and Nourinia, J., "Compact cpw-fed circular patch antenna for uwb applications", Journal of Communication Engineering, Vol. 2, (2013), 63-72

14.   Chen, M.-E. and Wang, J.-H., "Cpw-fed crescent patch antenna for uwb applications", Electronics letters,  Vol. 44, No. 10, (2008), 613-614.

15.   Liu, W., Yin, Y., Xu, W. and Zuo, S., "Compact open-slot antenna with bandwidth enhancement", Antennas and Wireless Propagation Letters, IEEE,  Vol. 10, No., (2011), 850-853.

16.           Lakrad, F. and Belhaq, M., "Suppression of pull-in instability in mems using a high-frequency actuation", Communications in Nonlinear Science and Numerical Simulation,  Vol. 15, No. 11, (2010), 3640-3646. 





International Journal of Engineering
E-mail: office@ije.ir
Web Site: http://www.ije.ir