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Pourush, P. K. S.
- 2x2 Array of Circular Patches on LiTiZn Ferrite Substrate
Abstract Views :896 |
PDF Views:108
Authors
Affiliations
1 Microwave Lab, Department of Physics, Agra College, Agra- 282 002 (U.P), IN
2 Department of Electronics & Communication, Anand Engineering College, Agra, IN
3 Solid State Physics Laboratory, Timarpur, Delhi-110 007, IN
1 Microwave Lab, Department of Physics, Agra College, Agra- 282 002 (U.P), IN
2 Department of Electronics & Communication, Anand Engineering College, Agra, IN
3 Solid State Physics Laboratory, Timarpur, Delhi-110 007, IN
Source
Indian Journal of Science and Technology, Vol 3, No 2 (2010), Pagination: 184-187Abstract
Rectangular array of four elements of microstrip circular patches modeled on LiTiZn ferrite substrate is presented. Here we have considered LiTiZn ferrite as a substrate which has been synthesized by the solid state reaction technique (SSRT). In this paper we present a comparison of radiation pattern and other parameters when the antenna array is biased perpendicularly with varying magnetic field. The array antenna using LiTiZn with magnetic biasing, reports a reduction of radiation of side-lobes with increased directivity with better radiation power response.Keywords
Substituted Ferrite, Microstrip Array Antenna, X-band Frequency RangeFull Text
References
- Pozar DM (1992) Radiation and scattering characteristic of microstrip antenna on normally biased ferrite substrate. IEEE Trans., AP-40, 1084-1092.
- Batchelor JC and Langley RJ (1997) Beam scanning using microstrip line on biased ferrite. Electr. Lett. 33, 8.
- Pourush PKS et al. (2000) Microstrip scanned array antenna on YIG ferrite substrate. Proc. Intl. Symp. on Antennas & Propagation, Japan.
- Bharadwaj V, Tiwari V, Sharma KB, Saxena VK, Saini JS and Bhatnagar D (2001) Radiation from switchable ferrite based equilateral triangular microstrip antenna. Proc. Natl. Conf. on Microwaves, A&P (Jaipur).
- Pourush PKS and Dixit L (1998) Wide-Band scanned array of microstrip antenna on ferrite substrate. Indian J. Physics. 73(B), 485-492.
- Van Uitert LG (1956) Dielectric Properties and Conductivity in Ferrites. Proc. IRE, 44(10), 1294-1303.
- Paladino AE, Waug JS, Green JJ and Booth AE (1966). Fine-Grain Nickel Ferrite for Microwave Applications at High Peak-Power Levels J. Appl. Phys. 37, 3371-3377.
- Pran Kishan D, Sagar R, Chatterjee SN, Nagpaul LK, Kumar N and Laroia KK (1985). Optimization of Bi2O3 Contents and its role in Sintering of Lithium Ferrite. Adv in Ceramics. 16, p. 207.
- Randhawa BS, Dosanjh HS and Nitendar Kumar (2007) Synthesis of lithium ferrite by precursor and combustion methods: a comparative study. J. Radio Anal. Nuclear Chemistry. 274(3), 581-591.
- Sodha MS and Srivastav’s NC (1981) Microwave propagation in Ferrimagnetics. Plenum Press, NY.
- LiTiMg Ferrite Substrate for Circular Array of Circular Patches under External Magnetic Field
Abstract Views :435 |
PDF Views:99
Authors
Affiliations
1 Microwave Lab, Dept. of Physics, Agra College, Agra- 282 002 (U.P), IN
2 Dept. of Electronics & Communication, Anand Engineering College, Agra, IN
3 Solid State Physics Laboratory, Timarpur, Delhi- 110 007, IN
1 Microwave Lab, Dept. of Physics, Agra College, Agra- 282 002 (U.P), IN
2 Dept. of Electronics & Communication, Anand Engineering College, Agra, IN
3 Solid State Physics Laboratory, Timarpur, Delhi- 110 007, IN
Source
Indian Journal of Science and Technology, Vol 3, No 3 (2010), Pagination: 299-302Abstract
A circular array of eight microstrip circular patches modeled on synthesized LiTiMg ferrite substrate has been investigated under the externally applied perpendicular DC magnetic field. LiTiMg ferrite substrate has been synthesized by the Solid State Reaction Technique (SSRT). Here, we also presented a comparison of radiation pattern and some other parameters, when the antenna array is biased and unbiased. Having LiTiMg substrate with perpendicular magnetic field, we reported a reduction of side-lobes, increased directivity and better radiation power response of array.Keywords
Substituted Li Ferrite, Microstrip Array Antenna, X-band Frequency RangeFull Text
References
- Batchelor JC and Langley RJ (1997) Beam scanning using microstrip line on biased ferrite. Elec. Lett. 33, 8.
- Bharadwaj V, Tiwari V, Sharma KB, Saxena VK, Saini JS and Bhatnagar D (2001) Radiation from switchable ferrite based equilateral triangular microstrip antenna. Proc. Nat. Conf. on Microwaves. A&P (Jaipur).
- Balh IJ and Bhartia P (1980) Microstrip antennas. Artech house, Norwood, MA.
- Balanis CA (1997) Antenna theory, John Wiley & Sons, Inc.
- Jain MK, Iyengar SRK and Jain RK (1993) Numerical method for scientific and engineering computation, Wiley eastern Ltd., New Delhi.
- Pozar DM (1992) Radiation and scattering characteristic of microstrip antenna on normally biased ferrite substrate. IEEE Trans. AP-40. pp:1084-1092.
- Pourush PKS and Dixit L (1998) A 2x2 Element planar phased array of circular microstrip antenna on Ni-Co ferrite substrate at 10 GHz. I. J. Ratio & Space Phy. 27, 289-226.
- Pourush PKS et al. (2000) Microstrip scanned array antenna on YIG ferrite substrate. Proc. Int. Symp. on Antennas & Propagation. Japan.
- Yttrium Ferrite Based Circularly Polarized Triangular Patch Array Antenna
Abstract Views :476 |
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 :490 |
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.