全部文献期刊会议图书|学者科研项目
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作者:P K Singhal , D Jain
来源:[J].Indian Journal of Dermatology, Venereology and Leprology(IF 1.206), 1989, Vol.55 (4), pp.256-257
摘要:A 65 year old, immunocompetent, male patient developed herpes zoster ophthalmicus associated with a generalized varicellifform euption and meningo-encephalitis. Meningo-encephalitis was diagnosed on the basis of CSF picture. The patient responded in seven clays to oral acyclovir ...
作者:P C Sharma , R D Gupta , P K Singhal
来源:[J].IETE Technical Review(IF 0.705), 1999, Vol.16 (1), pp.67-73
摘要:Bootlace lens is the most appropriate choice for multiple beam forming. A modified geometry and design approach for bootlace lens has been proposed. Path length error at the wave-front has been calculated. The proposed geometry is analysed using the contour integral approach. Res...
作者:P K Singhal , R D Gupta , P C Sharma
来源:[J].IETE Journal of Research(IF 0.2), 2001, Vol.47 (5), pp.231-240
摘要:Modified approach to design Rotman type lens has been proposed. Lenses designed using the proposed approach have been analyzed using the contour integral approach. Effects of design parameters on the performance of the lens have been investigated. Results of investigations on wid...
作者:P K Singhal , Pankaj Singh Tomar , Neha Verma
来源:[J].IETE Journal of Education, 2007, Vol.48 (3-4), pp.121-131
摘要:The present paper studies in depth the topologies of the Meander Line Antenna (MLA). The paper describes the various types of MLA with their varying shapes and sizes. The parameters and methods that define the design and analysis of the MLA are compared along with the analysis of...
作者:P K Singhal , Vivek Sharma ...
来源:[J].IETE Journal of Education, 2006, Vol.47 (3), pp.123-127
摘要:A modified design of fifth order stepped impedance microstrip low pass filter with increased attenuation rate has been proposed. Results obtained for the proposed design have been compared with the conventional design.
作者:P K Singhal , Bhawana Dhaniram , Ashima Khera
来源:[J].IETE Journal of Education, 2004, Vol.45 (3), pp.135-143
摘要:Microstrip Patch Antennas (MPA) are very useful for high frequency range due to their small size and low cost. However, they have their greatest limitation in terms of small bandwidth. To enhance the operational bandwidth and make it more effective, parasitic patch, slots an...

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