Waveguide slot arrays have a number of advantages over other mi-crowave antenna systems. Among the others they have a very large efciency, due to the use of closed guiding structures for feeding, and a considerable mechanical strength. On the other hand, they have no exibility since, once an array is... Broadband array antenna Broadband array antenna. Mike Stasiowski Cobham Defense Electronic Systems.Two different broadband phased array antennas were designed and built.[4] Tan-Huat Chio and D.H. Schaubert, “Parameter study and design of wide- band widescan dual-polarized tapered slot antenna... Optimization of a Waveguide-Backed Slot Antenna Array
In this paper, several configurations of Ka-band SIW-fed slot array antenna have been investigated. At first, a 1*4 corporate SIW feeding network integrated of Y- and T-junction power divider operating in 30 GHz was designed and simulated in order to provide a proper feeding network intended for the design of 4*4 and 4*8 antenna arrays.
A longitudinally-slotted ridge waveguide antenna array with a compact transverse dimension is presented. To broaden the bandwidth of the array, it is separated into two subarrays fed by a novel ... Broadband Slotted Waveguide Array Antenna | IntechOpen This chapter discusses concepts to achieve broadband nature of SWA antennas, design, development, and characterization of edge fed slotted waveguide array antenna, coupling slot fed SWA antenna, and high efficiency broadband slotted waveguide array. The developed SWA antennas are characterized and their measured results are presented. A WIDEBAND SLOTTED WAVEGUIDE ANTENNA ARRAY FOR SAR SYSTEMS ... A WIDEBAND SLOTTED WAVEGUIDE ANTENNA ARRAY FOR SAR SYSTEMS S. S. Sekretarov and D. M. Vavriv Institute of Radio Astronomy National Academy of Sciences of Ukraine 4, Chervonopraporna Str., Kharkov 61002, Ukraine Abstract|Possibilities for the extension of the operational frequency band of slotted waveguide antennas are studied. It is shown that by
Broadband Dual Linear Polarized (DLP) Antenna Array for Energy Harvesting System
A Parallel Plate Slot-Pair Array Dual Polarization Antenna A Parallel Plate Slot-Pair Array Dual Polarization Antenna for Small Satellite SAR Vinay Ravindra Department of Electrical Engineering and Information Systems University of Tokyo Tokyo, Japan Email: ravindra@ac.jaxa.jp Prilando Akbar and Hirobumi Saito Institute of Space and Astronautical Science/ Japan Aerospace Exploration Agency Array Antenna for Synthetic Aperture Radar Operating in X Array Antenna for Synthetic Aperture Radar Operating in X and Ku- waveguide slot array antennas unfortunately have a limited bandwidth. To overcome this deficiency ... broadband slotted ridged antenna array”, IEEE. Trans. Antennas. Propogat, vol.54, pp. 2416- 2420, August 2006. Compact antenna element for high-resolution SAR For high-resolution synthetic aperture radar polarimetry applications, a compact broadband dual-polarised antenna element with high port isolation and low cross-polarisation is investigated. The size of the element is 19 × 19 × 40 mm, which is much smaller than the traditional dual-polarised horn. The measured results show that the operating frequencies of both the ports are used from 8.2 to
Waveguide slotted antenna array with broadband, dual ...
梁仙灵 | 电子工程系副教授 - 上海交通大学 现代天线研究中心 ... Meiqing Qi, Xianling Liang, Broadband ridged waveguide slot antenna array fed by back-to-back ridged waveguide ... , Hong-tao Zhang, Broadband antenna array for um ... A broadband slotted ridge waveguide antenna array - INFONA
A WIDEBAND SLOTTED WAVEGUIDE ANTENNA ARRAY FOR SAR SYSTEMS ...
gain broad-band waveguide broad-wall longitudinal slot array antenna. Initially a basic two-element slot array antenna has been analyzed, and corresponding scattering parameter data have been obtained and validated. After validating the methodology, attempts have been made to design a broad-band high-gain slot array antenna. An 18-element Broadband ridged-waveguide slot-antenna array fed by a
A new kind of wideband waveguide slot array for synthetic aperture radar (SAR) is presented. Elliptical slots are first used for designing the waveguide slot antenna. An eight-element waveguide slot array operating at X-band is designed and measured. Broadband Dual-Polarized Waveguide Slot Filtenna Array ... Abstract: A broadband waveguide slot filtenna array with low cross polarization and high efficiency is presented for dual-polarization applications. The vertical polarization radiation is achieved by offsetting longitudinal slots on the ridged waveguide, while the Waveguide slotted antenna array with broadband, dual ...