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Kumar, Dheeraj
- Yttrium Ferrite Based Circularly Polarized Triangular Patch Array Antenna
Abstract Views :481 |
PDF Views:94
Authors
Affiliations
1 Department of Applied Physics, Delhi Technological University, New Delhi 110 042, IN
2 Microwave & Antenna System Lab, Deptartment of Physics, Agra College, Agra-282 002, IN
1 Department of Applied Physics, Delhi Technological University, New Delhi 110 042, IN
2 Microwave & Antenna System Lab, Deptartment of Physics, Agra College, Agra-282 002, IN
Source
Indian Journal of Science and Technology, Vol 3, No 4 (2010), Pagination: 447-449Abstract
In this communication, the circularly polarized properties of 4x4 element planar microstrip equilateral triangular array antenna (METAA) printed on Yttrium ferrite substrate are presented. Two hands of circular polarization are generated when the magnetic bias is applied parallel to the wave propagation in the antenna geometry. The values of antenna parameters of array geometry as radiation conductance, radiation efficiency and bandwidth are investigated for biased and unbiased case. The analysis is based on cavity model.Keywords
Antenna, Ferrite, Microstrip Array, Circular Polarization, Yttrium, RadiationFull Text
References
- Bahl IJ and Bhartia P (1980) Microstrip Antenna. Artech House. pp: 139-179.
- Batchelor JC and Langley RJ (1997) Beam scanning using microstrip line on biased Ferrite. Electronic Lett. 33, 8.
- Chen HM and Wong KL (1999) On the circular polarization operation of annular ring microstrip antenna. IEEE Trans. Antennas Propagation. 47(8), 1289-1292.
- Haung CY (1999) Design for an aperture coupled compact circularly polarized microstrip antenna. IEE Proc. Microwaves. Antennas Propagation. 146(1), 13-16.
- Iwasaki H and Chiva N (1999) Circular polarized back to back microstrip antenna with an ominidirectional pattern. IEE Proc. Microwave Antennas Propagation. 146(4), 277-281.
- Naveen Kumar Saxena, Moh. Ayub Khan, Nitendar Kumar and P.K.S. Pourush (2010) LiTiMg ferrite substrate for circular array of circular patches under external magnetic field. Indian J.Sci.Technol. 3 (3), 299-302. Domain site: http://www.indjst.org.
- Pozar DM (1992) Radiation and scattering characteristics of microstrip antenna on normally biased Ferrite substrate. IEEE Trans. A&P, AP-40, 1084-1092.
- Roy JS and Vandon P (1992) Circularly polarized for field of an axially magnetized circular Ferrite microstrip antenna. Microwave Opt. Tech. Letts. 5, 228-230.
- Soda MS Srivastava NC (1981) Microwave propagation in Ferrimagnetics. Plenum Press, New York and London.
- Ni Ferrite Based Microstrip Phased Array Antenna in L-band
Abstract Views :492 |
PDF Views:104
Authors
Affiliations
1 Babasaheb Bhimrao Ambedkar University, Lucknow, UP, IN
2 Department of Physics, Agra College, Agra, UP, IN
1 Babasaheb Bhimrao Ambedkar University, Lucknow, UP, IN
2 Department of Physics, Agra College, Agra, UP, IN
Source
Indian Journal of Science and Technology, Vol 3, No 12 (2010), Pagination: 1190-1193Abstract
Characteristics of Ni ferrite based microstrip phased array antenna in terms of the switchability, radiation patterns and gain have been investigated using transmission line model. The radiation characteristics of antenna are described with a normal magnetic bias field towards the plane of ferrite substrate considering the phase excitation difference between the patch elements π/2 and π/4. It is observed that by properly varying the relative phases, it is possible to steer the direction of radiation. This advantage is applicable in radar, search/track applications.Keywords
Microstrip Antenna, Switchable Antenna, Phased Array Antenna, FerriteFull Text
References
- Bahl IJ and Bhartia P (1980) Microstrip antenna, Artech house.
- Balanis VA (1982) Antenna theory analysis and design. John Wiley, New York.
- How H and Vittoria C (2004) Microwave phase shifters utilizing nonreciprocal wave propagation. IEEE Trans Microwave Theory Technique. 52, 8.
- Kumar D and Pourush PKS (2004) Triangular microstrip array on NiZn substrate in L-band. Microwave Optical Technol. Lett. 43, 4, 286- 290.Nicholas E, Timothy BF and Silverstein Robert S (1993) Dipole arrays printed on ferrite substrates. IEEE Trans. A & P. 41, 165-175.
- Roy JS and Vandon P (1992) Circularly polarized for field of an axially magnetized circular ferrite microstrip antenna. Microwave Opt. Tech. Lett. 5, 228-230.
- Soda MS and Srivastava NC (1981) Microwave propagation in ferrimagnetics. Plenum press, New York & London.