A circularly polarized microwave radio antenna which is constructed so that its phase center can be very easily and very accurately positioned with respect to a marker point over which the antenna is placed is disclosed. The antenna includes a ground plane, antenna elements in a common plane ...
: ‘ Dual circular polarized steering antenna for satellite communications in X band ’, Prog. Electromagn. Res. , 2012 , 122 , pp. 61 – 76 : 10.2528/PIER11100501 ).Gonzalo Exposito-Dominguez, Jose-Manuel Fernandez Gonzalez, Pablo Padilla de La Torre, and Manuel Sierra-Castaner. 2012. ...
A low profile dual-band circularly polarized (CP) antenna working at BD-B3 (1268MHz) and GPS-L1 (1590MHz) frequencies is designed in this paper. Four rectangular swells are added around the antenna to tune the resonant frequency. Two patches are stacked longitudinally to realize good CP ...
In addition, the circular-polarized antenna in Ka-band has become the focus of attention because of its flexibility in polarization matching for satellite communication [9], [10], [11], [12]. The shared-aperture technology has significant effect on achieving the multi-function antennas, reducing...
TRI-BAND CIRCULARLY-POLARIZED ANTENNA FOR A SATELLITE COMMUNICATIONS GROUND TERMINALA system for and method of receiving and transmitting signals to and from one or more satellites is provided. In particular, the system and method allow for transmitting and receiving signals in, for example, Ka, K...
This work presents the design and experimental validation of a dual-band fully reconfigurable circularly polarized (CP) reflectarray (RA) antenna for satellite communication applications in the Ku-band. The proposed structure operates with the downlink and uplink beams at frequency bands of [...
In this paper, we present a dual-band dual-circular-polarized planar spiral-slot CNSS antenna. This antenna works at L Band (1616??5 MHz, left-handed circular polarization, LHCP) and S Band (2492??5 MHz, right-handed circular polarization, RHCP). Numerical results show that the impedance...
In this paper, a novel dual circular polarization waveguide antenna array with wide band and low axial ratio is presented at X-band. Planar horn array is used to attain dual circular-polarization working with orthomode transducer and rectangular side wall coupler. A demo array of 16×...
Argentine Scientific Satellite (SAC-C) antennas have been developed in order to fulfill the satellite-ground link requirements for a satellite polar orbit without the on board antenna steering necessity. This task was achieved with a modified Kilgus circular polarized antenna where wide bandwidth and ...
The size of the layer II circular ring changes similarly. As the size decreases, η increases from 0.8 to 1.0, the resonance frequency point in the low-frequency band is shifted to a lower frequency range, and the reflection amplitude increases. However, this change had little effect on the...