Results 251 to 260 of about 3,242 (300)
Some of the next articles are maybe not open access.
Wideband Phased Array Antennas
2008 IEEE National Aerospace and Electronics Conference, 2008Slotted spiral antennas with a ground plane are designed to cover the frequency range 0.5-18 GHz. Various antennas incorporating Archemidan slotted spirals with a ground plane and dielectric thickness less than 100 um were designed, processed and tested at different frequency ranges using conventional PCBs as well as vertically interconnected and ...
Altan M. Ferendeci, Piyou Zhang
openaire +1 more source
1971 2nd European Microwave Conference, 1971
The theory of array antenna design has matured such that the tools are now available to design elements with predictable performance and to verify this performance with high confidence. The antenna feed is of equal importance to the antenna element.
openaire +1 more source
The theory of array antenna design has matured such that the tools are now available to design elements with predictable performance and to verify this performance with high confidence. The antenna feed is of equal importance to the antenna element.
openaire +1 more source
Phased array antennas for mobile communications
Annales Des Télécommunications, 1999Un systeme d’antenne incluant des elements rayonnants et un modele de poursuite est considere comme un point clef dans la technologie des systemes de communication avec des mobiles. Le reseau a commande de phase a ete longtemps considere comme le meilleur candidat du fait de ses nombreuses proprietes attractives telle que sa compacite, sa vitesse de ...
openaire +1 more source
Noise in phased antenna arrays
Radiophysics and Quantum Electronics, 19811. Interaction of radiators has an appreciable effect on the noise characteristics of passive as well as active phased antenna arrays. This effect can be rather accurately accounted for with the aid of only one parameter of the radiator array, namely its effective reflection coefficient defined in the transmission mode with excitation of all ...
�. F. Zaitsev +2 more
openaire +1 more source
14th European Microwave Conference, 1984, 1984
The MLS provides the aircraft with its full position in relation to the runway by means of an azimuth angle, an elevation angle and distance. The angle data are coded in accordance with the principle of "time reference scanning beam" and radiated by phased array antennas. TH.
openaire +1 more source
The MLS provides the aircraft with its full position in relation to the runway by means of an azimuth angle, an elevation angle and distance. The angle data are coded in accordance with the principle of "time reference scanning beam" and radiated by phased array antennas. TH.
openaire +1 more source
Education in Antennas-Phased Array Antenna
2005The paper decribes the beam forming network that feeds linear antenna array of four monopoles above the ground plane and enables an electrical deflection of the array radiation pattern into the demanded direction. This solution is intended for practical teaching students of antenna and microwave.
Debogović, Tomislav +2 more
openaire +2 more sources
1993
This chapter is a comprehensive treatment of phased arrays, including (1) array theory, analysis and synthesis techniques; (2) the detailed treatment of array elements and mutual coupling effects; and (3) active arrays - architectures, transmitter-receiver (T/R) modules, feed and control, design criteria and low-sidelobe techniques.
openaire +1 more source
This chapter is a comprehensive treatment of phased arrays, including (1) array theory, analysis and synthesis techniques; (2) the detailed treatment of array elements and mutual coupling effects; and (3) active arrays - architectures, transmitter-receiver (T/R) modules, feed and control, design criteria and low-sidelobe techniques.
openaire +1 more source
Conformal Phased Array Antenna Design
S-MTT International Microwave Symposium Digest, 1974An extremely low profile modular conformal phased array antenna design will be presented. Components that make up the antenna will be described to show the unique features such as the plug-in balun, the MHP phase shifter assembly, and the stripline RF manifold tracks incorporated to a create a lightweight, reliable, maintainable panel.
openaire +1 more source
Microstrip Antenna and Phased Array
1988 18th European Microwave Conference, 1988A systematic approach to analysis of notch-fed rectangular microstrip raditing element and its application to phased array is discussed. A modular design method of medium gain microstrip array is described. Design formulas and plots, sufficiently accurate to specify important design properties of the proposed antenna are included.
openaire +1 more source
IEEE Transactions on Antennas and Propagation, 1964
A self-phasing array antenna is described which operates on the incident wavefront in such a manner that when it is retransmitted it returns whence it came as a coherent wavefront irrespective of the original phase distribution incident on the array. Self-phasing is useful where a two-way propagation path is available and where a conventional antenna ...
M. Skolnik, D. King
openaire +1 more source
A self-phasing array antenna is described which operates on the incident wavefront in such a manner that when it is retransmitted it returns whence it came as a coherent wavefront irrespective of the original phase distribution incident on the array. Self-phasing is useful where a two-way propagation path is available and where a conventional antenna ...
M. Skolnik, D. King
openaire +1 more source