Please wait a minute...
Shopping Cart Email List Chinese
Advanced Search Fig/Tab
Frontiers of Electrical and Electronic Engineering

ISSN 2095-2732

ISSN 2095-2740(Online)

CN 10-1028/TM

Featured Articles  |  Most Downloaded  |  Most Reading
Online Submission Subscribe to Our RSS Content Feed
Front Elect Electr Eng    2012, Vol. 7 Issue (4) : 381-385    https://doi.org/10.1007/s11460-012-0218-7
RESEARCH ARTICLE
A broadband helical loaded square cavity back antenna array
B. K. MISHRA, Vinitkumar Jayaprakash DONGRE(), Megha GUPTA
Thakur College of Engineering and Technology, Mumbai 400101, India
 Download: PDF(391 KB)   HTML
 Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract

In this paper, a fundamental advancement of the basic helix design which expands to array having good bandwidth is proposed. The helix is inserted in a cavity. The result is a new antenna design that offers the performance characteristics and advantages of the conventional helix but in a much more compact physical size envelope. A 4-element rectangular helical array has been designed. For miniaturization and impedance matching, the helical wire is replaced by a rectangular cross sectioned strip. It has been observed that when the helix is inserted in a cavity, it behaves differently from a normal helical antenna. The effects of the cavity on the number of turns, the impedance of total antenna, and the reflection coefficient have been analyzed. The array is designed for 2.4 GHz. The return loss obtained is less than -10 dB and the bandwidth is more than 1.3 GHz for the array.
Keywords antenna array      broadband helical antenna      helix impedance matching      strip helix      square cavity back     
Corresponding Author(s): DONGRE Vinitkumar Jayaprakash,Email:dongrevinit@gmail.com   
Issue Date: 05 December 2012
 Cite this article:   
B. K. MISHRA,Vinitkumar Jayaprakash DONGRE,Megha GUPTA. A broadband helical loaded square cavity back antenna array[J]. Front Elect Electr Eng, 2012, 7(4): 381-385.
 URL:  
https://academic.hep.com.cn/fee/EN/10.1007/s11460-012-0218-7
https://academic.hep.com.cn/fee/EN/Y2012/V7/I4/381
Fig.1  Helix loaded in square cavity with size of 29 mm × 29?mm and height of 60 mm
Fig.1  Helix loaded in square cavity with size of 29 mm × 29?mm and height of 60 mm
Fig.1  Helix loaded in square cavity with size of 29 mm × 29?mm and height of 60 mm
Fig.1  Helix loaded in square cavity with size of 29 mm × 29?mm and height of 60 mm
Fig.1  Helix loaded in square cavity with size of 29 mm × 29?mm and height of 60 mm
Fig.2  Reflection coefficient for helix diameter of 14.69 mm in square cavity
Fig.2  Reflection coefficient for helix diameter of 14.69 mm in square cavity
Fig.2  Reflection coefficient for helix diameter of 14.69 mm in square cavity
Fig.2  Reflection coefficient for helix diameter of 14.69 mm in square cavity
Fig.2  Reflection coefficient for helix diameter of 14.69 mm in square cavity
Fig.3  Reflection coefficient for helix diameter of 16.32 mm in square cavity
Fig.3  Reflection coefficient for helix diameter of 16.32 mm in square cavity
Fig.3  Reflection coefficient for helix diameter of 16.32 mm in square cavity
Fig.3  Reflection coefficient for helix diameter of 16.32 mm in square cavity
Fig.3  Reflection coefficient for helix diameter of 16.32 mm in square cavity
Fig.4  Reflection coefficient for helix diameter of 18.36 mm in square cavity
Fig.4  Reflection coefficient for helix diameter of 18.36 mm in square cavity
Fig.4  Reflection coefficient for helix diameter of 18.36 mm in square cavity
Fig.4  Reflection coefficient for helix diameter of 18.36 mm in square cavity
Fig.4  Reflection coefficient for helix diameter of 18.36 mm in square cavity
Fig.5  Helical loaded square cavity back antenna in 4-element array. (a) Side view; (b) top view
Fig.5  Helical loaded square cavity back antenna in 4-element array. (a) Side view; (b) top view
Fig.5  Helical loaded square cavity back antenna in 4-element array. (a) Side view; (b) top view
Fig.5  Helical loaded square cavity back antenna in 4-element array. (a) Side view; (b) top view
Fig.5  Helical loaded square cavity back antenna in 4-element array. (a) Side view; (b) top view
Fig.6  Reflection coefficient of 4-element array design
Fig.6  Reflection coefficient of 4-element array design
Fig.6  Reflection coefficient of 4-element array design
Fig.6  Reflection coefficient of 4-element array design
Fig.6  Reflection coefficient of 4-element array design
Fig.7  Radiation pattern for antenna array
Fig.7  Radiation pattern for antenna array
Fig.7  Radiation pattern for antenna array
Fig.7  Radiation pattern for antenna array
Fig.7  Radiation pattern for antenna array
Fig.8  Impedance variation for the proposed antenna array with various strip heights
Fig.8  Impedance variation for the proposed antenna array with various strip heights
Fig.8  Impedance variation for the proposed antenna array with various strip heights
Fig.8  Impedance variation for the proposed antenna array with various strip heights
Fig.8  Impedance variation for the proposed antenna array with various strip heights
Fig.9  Variation in reflection coefficient with changes in length of side of square cavity
Fig.9  Variation in reflection coefficient with changes in length of side of square cavity
Fig.9  Variation in reflection coefficient with changes in length of side of square cavity
Fig.9  Variation in reflection coefficient with changes in length of side of square cavity
Fig.9  Variation in reflection coefficient with changes in length of side of square cavity
Fig.10  Variation in reflection coefficient with changes in strip height
Fig.10  Variation in reflection coefficient with changes in strip height
Fig.10  Variation in reflection coefficient with changes in strip height
Fig.10  Variation in reflection coefficient with changes in strip height
Fig.10  Variation in reflection coefficient with changes in strip height
Fig.11  Variation in reflection coefficient with changes in height of helix above cavity
Fig.11  Variation in reflection coefficient with changes in height of helix above cavity
Fig.11  Variation in reflection coefficient with changes in height of helix above cavity
Fig.11  Variation in reflection coefficient with changes in height of helix above cavity
Fig.11  Variation in reflection coefficient with changes in height of helix above cavity
1 Li X Q, Liu Q X, Wu X J, Zhao L, Zhang J Q, Zhang Z Q. A GW level high-power radial line helical array antenna. IEEE Transactions on Antennas and Propagation , 2008, 56(9): 2943–2948
doi: 10.1109/TAP.2008.928781
2 Kraus J D. Antennas. 2nd ed. New York: McGraw Hill, 2001
3 Zhang J Q, Liu Q X, Li X Q, Zhao L. Design of the 4-element rectangle radial line helical array antenna. In: Proceedings of IEEE International Conference on Microwave and Millimeter Wave Technology . 2010, 1: 690–692
4 Li X Q, Liu Q X, Zhang J Q, Zhao L. 16-element single layer rectangular radial line helical array antenna for high power applications. IEEE Antennas and Wireless Propagation Letters , 2010, 9: 708–711
doi: 10.1109/LAWP.2010.2059371
5 Dongre V J, Mishra B K. Compact size helical loaded cavity backed antenna by helical resonator filter. Communications in Computer and Information Science , 2011, 145: 278–282
6 Zverev A I, Blinchikoff H J. Realization of a filter with helical components. IRE Transactions on Component Parts , 1961, 8(3): 99–110
[1] Gang LI, Shiwen YANG, Ming HUANG, Zaiping NIE, . Shaped patterns synthesis in time-modulated antenna arrays with static uniform amplitude and phase excitations[J]. Front. Electr. Electron. Eng., 2010, 5(2): 179-184.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed