Abstract




 
   

IJE TRANSACTIONS A: Basics Vol. 28, No. 10 (October 2015) 1463-1468   

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  COMPLEMENTARY PERIODIC STRUCTURES FOR MINIATURIZATION OF PLANAR ANTENNAS
 
S. Jarchi, J. Rashed-Mohassel, R. Faraji-Dana and M. Shahabadi
 
( Received: March 08, 2015 – Accepted: October 16, 2015 )
 
 

Abstract    In this paper various layered planar periodic structures which provide miniaturization of planar antennas are proposed and discussed. The proposed designs are based on two concepts, reactive impedance surfaces and complementary periodic structures. In the proposed structures, complementary periodic rings and slots are patterned on the intermediate boundaries of the dielectric layers. A patch antenna is patterned on top of the first layer and the whole structure is grounded. The dielectric layers can be either similar or may have different dielectric constants and thicknesses. The dielectric constants and thicknesses of the layers can be chosen in a wide range of values. Two distinct configurations are studied simultaneously, namely, complementary circular rings and complementary square rings. The proposed designs provide a miniaturization factor in the range of 2.1-4.5 for planar antennas working in the frequency range of 2-22GHz. Parametric studies are provided to demonstrate high flexibility of the structures.

 

Keywords    : planar antennas, miniaturization, periodic structures, complementary periodic structures.

 

چکیده    در این مقاله چندین ساختار تناوبی مسطح چندلایه که کاهش ابعاد برای آنتن های مسطح ایجاد میکنند پیشنهاد و بررسی شدهاند. طرحهای پیشنهادی براساس دو مفهوم سطوح امپدانسی راکتیو و ساختارهای تناوبی مکمل هستند. در ساختارهای پیشنهاد شده، حلقهها و شکافهای تناوبی مکمل بر روی مرزهای میانی لایههای دیالکتریک ایجاده شدهاند. یک آنتن مسطح بر بالای لایه اول ایجاد شده است و کل ساختار زمین شده است. لایههای دیالکتریک میتوانند مشابه باشند یا این که ثابتهای دیالکتریک متفاوت و ضخامتهای متفاوت دارا باشند. مقادیر ثابت دیالکتریک و ضخامت لایهها میتوانند در محدوده وسیعی انتخاب شوند. دو شکل مجزا به طور همزمان بررسی شدهاند، حلقههای دایروی مکمل و حلقههای مربعی مکمل. طرحهای پیشنهاد شده ضریب کاهش ابعاد در محدوده 1/2 تا 5/4 را برای آنتنهای مسطح که در محدوده فرکانسی 2گیگاهرتز تا 22گیگاهرتز کار میکنند، ایجاد میکنند. مطالعات پارامتری انجام شده است تا انعطافپذیری بالای ساختارها را نشان دهد.

References   

 

1.     Dashti, H. and Neshati, M., "Comparative investigation of half-mode siw cavity and microstrip hybrid antenna using different patch shapes", International Journal of Engineering-Transactions A: Basics,  Vol. 27, No. 10, (2014), 1573-1580.

2.     Ghobadi, C. and Majidzadeh, M., "Multi attribute analysis of a novel compact uwb antenna with via-fed elements for dual band notch function (research note)", International Journal of Engineering-Transactions A: Basics,  Vol. 27, No. 10, (2014), 1565-1572.

3.     Fakharian, M.M., Rezaei, P., Azadi, A. and Dadras, M., "A capacitive fed microstrip patch antenna with air gap for wideband applications", International Journal of Engineering, Transactions B: Applications,  Vol. 27, No. 5, (2014), 715-722.

4.     Fakharian, M. and Rezaei, P., "Parametric study of uc-pbg structure in terms of simultaneous amc and ebg properties and its applications in proximity-coupled fractal patch antenna", International Journal of Engineering-Transactions A: Basics,  Vol. 25, No. 4, (2012), 347-354.

5.     Yousefi, L. and Ramahi, O.M., "Miniaturised antennas using artificial magnetic materials with fractal hilbert inclusions", Electronics Letters,  Vol. 46, No. 12, (2010), 816-817.

6.     Buell, K., Mosallaei, H. and Sarabandi, K., "A substrate for small patch antennas providing tunable miniaturization factors", Microwave Theory and Techniques, IEEE Transactions on,  Vol. 54, No. 1, (2006), 135-146.

7.     Mosallaei, H. and Sarabandi, K., "Design and modeling of patch antenna printed on magneto-dielectric embedded-circuit metasubstrate", Antennas and Propagation, IEEE Transactions on,  Vol. 55, No. 1, (2007), 45-52.

8.     Yousefi, L. and Ramahi, O.M., "Artificial magnetic materials using fractal hilbert curves", Antennas and Propagation, IEEE Transactions on,  Vol. 58, No. 8, (2010), 2614-2622.

9.     Ikonen, P.M., Rozanov, K.N., Osipov, A.V., Alitalo, P. and Tretyakov, S., "Magnetodielectric substrates in antenna miniaturization: Potential and limitations", Antennas and Propagation, IEEE Transactions on,  Vol. 54, No. 11, (2006), 3391-3399.

10.   Mosallaei, H. and Sarabandi, K., "Magneto-dielectrics in electromagnetics: Concept and applications", Antennas and Propagation, IEEE Transactions on,  Vol. 52, No. 6, (2004), 1558-1567.

11.   Seo, J.-S. and Woo, J.-M., "Miniaturisation of microstrip antenna using irises", Electronics Letters,  Vol. 40, No. 12, (2004), 718-719.

12.   Song, M.-H. and Woo, J.-M., "Miniaturisation of microstrip patch antenna using perturbation of radiating slot", Electronics Letters,  Vol. 39, No. 5, (2003), 417-419.

13.   Lee, S., Woo, J., Ryu, M. and Shin, H., "Corrugated circular microstrip patch antennas for miniaturisation", Electronics Letters,  Vol. 38, No. 6, (2002), 262-263.

14.   Mosallaei, H. and Sarabandi, K., "Antenna miniaturization and bandwidth enhancement using a reactive impedance substrate", Antennas and Propagation, IEEE Transactions on,  Vol. 52, No. 9, (2004), 2403-2414.

15.   Sarabandi, K., Buerkle, A.M. and Mosallaei, H., "Compact wideband uhf patch antenna on a reactive impedance substrate", Antennas and Wireless Propagation Letters, IEEE,  Vol. 5, No. 1, (2006), 503-506.

16.   Bao, X. and Ammann, M., "Small patch/slot antenna with 53% input impedance bandwidth", Electronics Letters,  Vol. 43, No. 3, (2007), 146-147.

17.   Herscovici, N., Osorio, M.F. and Peixeiro, C., "Miniaturization of rectangular microstrip patches using genetic algorithms", Antennas and Wireless Propagation Letters, IEEE,  Vol. 1, No. 1, (2002), 94-97.

18.   Thakare, Y., "Design of fractal patch antenna for size and radar cross-section reduction", IET Microwaves, Antennas & Propagation,  Vol. 4, No. 2, (2010), 175-181.

19.   Jarchi, S., RashedMohassel, J. and FarajiDana, R., "Proximity effects of a layered periodic structure on miniaturization of patch antennas", International Journal of RF and Microwave ComputerAided Engineering,  Vol. 23, No. 5, (2013), 549-558.

20.   Lockyer, D., Vardaxoglou, J. and Simpkin, R., "Complementary frequency selective surfaces", in Microwaves, Antennas and Propagation, IEE Proceedings, IET. Vol. 147, (2000), 501-507.


 





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