The Short-backfire Antenna
Author : Hermann W. Ehrenspeck
Publisher :
Page : 12 pages
File Size : 22,28 MB
Release : 1965
Category : Antennas (Electronics)
ISBN :
Author : Hermann W. Ehrenspeck
Publisher :
Page : 12 pages
File Size : 22,28 MB
Release : 1965
Category : Antennas (Electronics)
ISBN :
Author : Hermann W. Ehrenspeck
Publisher :
Page : 24 pages
File Size : 46,61 MB
Release : 1971
Category : Antenna arrays
ISBN :
The short backfire (SBF) antenna consisting of a large reflector illuminated by a dipole feed and smaller disk reflector produces a gain of 15 dB above isotropic. As an array element it has been efficiently adapted for various configurations of high-gain antennas producing gains of up to 25 dB, with a single SBF element capable of replacing four to six elements of a conventional multidipole array. Farfield patterns and directivity measurements are presented for a single element and for a twin element mounted on a common reflector. Optimized dimensions for both cases are discussed for possible application to more complex types of antennas.
Author : Hermann W. Ehrenspeck
Publisher :
Page : 40 pages
File Size : 25,46 MB
Release : 1971
Category : Antenna arrays
ISBN :
Short-backfire (SBF) antennas can be simply converted into highly directive and efficient array elements. Each SBF element is the equivalent of four to six dipole elements of conventional multielement arrays. Models of two-, four-, and eight-element SBF arrays have yielded gains of 17, 19, and 22 dB, respectively. Radiation patterns are presented, including the sum and difference patterns in the two major planes (E and H), as well as those for diagonal cuts at plus or minus 45 degrees. All physical dimensions are given in wavelengths so that each model can be easily scaled for any desired frequency. (Author).
Author :
Publisher :
Page : 32 pages
File Size : 27,34 MB
Release : 1965
Category : Research
ISBN :
Author :
Publisher :
Page : 252 pages
File Size : 20,46 MB
Release : 1967
Category : Aeronautics
ISBN :
Author : Air Force Cambridge Research Laboratories (U.S.)
Publisher :
Page : 400 pages
File Size : 16,55 MB
Release : 1970
Category : Geophysics
ISBN :
Author : Air Force Cambridge Research Laboratories (U.S.)
Publisher :
Page : 480 pages
File Size : 18,36 MB
Release : 1962-07
Category : Geophysics
ISBN :
Author :
Publisher :
Page : 384 pages
File Size : 47,16 MB
Release : 1966
Category : Science
ISBN :
Author : Radhakrishna Maringanti
Publisher : Springer Science & Business
Page : 265 pages
File Size : 37,32 MB
Release : 2014-04-22
Category : Technology & Engineering
ISBN : 813221823X
Wireless communication and sensor networks would form the backbone to create pervasive and ubiquitous environments that would have profound influence on the society and thus are important to the society. The wireless communication technologies and wireless sensor networks would encompass a wide range of domains such as HW devices such as motes, sensors and associated instrumentation, actuators, transmitters, receivers, antennas, etc., sensor network aspects such as topologies, routing algorithms, integration of heterogeneous network elements and topologies, designing RF devices and systems for energy efficiency and reliability etc. These sensor networks would provide opportunity to continuously and in a distributed manner monitor the environment and generate the necessary warnings and actions. However most of the developments have been demonstrated only in controlled and laboratory environments. So we are yet to see those powerful, ubiquitous applications for the benefit of the society. The conference and consequentially the proceedings would provide opportunity to the researchers to interact with other researchers and share their researches covering all the above areas. The proceedings of the conference thus covers the research work of different authors in the area of wireless sensor networks, wireless communications, devices, tools and techniques for WSN, and applications of wireless sensor networks. This book is beneficial for those researchers who are working in the area of wireless sensor networks, wireless communication, and developing applications of Wireless sensor networks.
Author : United States. Air Force. Office of Aerospace Research
Publisher :
Page : 518 pages
File Size : 20,76 MB
Release : 1965
Category :
ISBN :