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A 1.1-m reflectarray antenna has been designed, manufactured and tested to fulfil the requirements of a satellite antenna in Ku-band that provides South American coverage in Tx and Rx. The reflectarray cells consist of four dipoles for each polarization in two dielectric layers, which were selected because of their simplicity and high performance. The dipole dimensions are optimized in all the reflectarray...
This paper presents a compact X-band antenna with an isoflux radiation pattern and circular polarization. It consists of a miniaturized helix antenna connected to a stripline circuit that provides a sequential rotation feeding. The antenna is arranged over a vertically corrugated ground plane and it has been optimized for a CubeSat 3U nano-satellite platform. Its design, manufacture and results are...
This paper presents how several technological advancements in communication satellite antennas have been transferred to other applications and synergistically combined to enable significant reductions in the cost per billable bit of throughput.
The paper deals with the extensive use of optimization techniques at Space Engineering during the several phases of development of antenna sub-systems for satellite applications.
Lockheed Martin Space Systems Company has pioneered advanced antenna solutions over several decades and built a wider range of payload solutions than any other company in the industry. This paper presents a few antenna technologies which has been successfully developed and flown over the years.
The paper provides an overview of the most significant space antenna products and technologies for Observation, Exploration and Navigation (OEN) developed by ThalesAleniaSpace-Italia (TAS-I) over more than 30 years. These antennas provided a determinant contribution to the scientific community in understanding earth environment and solar planets. An outline of today key developments is also presented.
This paper introduces the heritage of Mitsubishi's phased array antennas(PAA's) development focusing on mobile satellite communication terminals from commercialization of product standpoint.
The details of two product concepts and the hardware realization aspects for low profile Ku-/Ka-band land mobile terminals for high data rate satellite communications are described. Beside the competitive low cost approach, the non-obstructive design and lower weight are key issues for many applications to achieve a broad customer acceptance. The introduction of a proprietary planar antenna technology...
We present in this paper a novel wideband circularly polarized dielectric resonator antenna (DRA) covering the complete Global Navigation Satellite System (GNSS) frequency band (1150–1620 MHz). This antenna, considering its simplicity, provides excellent performance in terms of gain, axial ratio and beamwidth across the entire operating bandwidth while being relatively low profile and with a design...
In the current work we focus on sparse array design employing overlapping radiating elements. In this case, the underlying sparse grid shapes the broadside directivity far-field pattern while the overlapping flat-top producing sub-arrays eliminate the scanning loses. In detail, when overlapping arrays are involved the design process is as follows: Perform broadside design, (not scanning beam), using...
This contribution describes the design of a multi-beam dual reflectarray antenna for operation in transmission in Ka-band (20 GHz). The bifocal design concept has been used to obtain an improved performance for the off-axis beams with respect to the single focused antenna. The required phase-shift distributions are initially obtained with the reflectarrays in parallel planes, and then adjusted to...
This paper presents a novel circularly polarised Ku-band multiple beam antenna based on a quasi-optical beamformer and a wideband reflection polarizer conformally deployed along a cylindrical parabolic reflector for satellite applications. By virtue of the wide scanning capability of the beamformer and the wide band and angularly stable response of the curved polarising reflector we demonstrate multibeam...
A deployable parallel-plate slot array antenna is being developed for the Synthetic Aperture Radar (SAR) sensor onboard small satellite. This parallel-plate slot array antenna is designed to operate in X-band frequency with vertically polarized radiation. The antenna is designed entirely by using HFSS simulator. From the results of simulation, it is shown that at the center frequency (9.65 GHz), one...
An hybrid array fed reflector antenna solution is described in this paper, combining a focused geometry in one plane and an imaging (defocused) geometry in the orthogonal plane. This doubly curved reflector geometry can be combined with a stack of linear phased arrays, introducing some re-configurability at a moderate cost when compared to more conventional imaging reflector solutions using planar...
This paper describes a Ku band, electronic beam steered array, operating at 10.7 GHz to 12.7 GHz intended for satellite DVB reception. The beam steering operates in the azimuth plane and the antenna also has a fixed beam squint at 23° elevation selected as appropriate for UK operation. This allows the distinct advantage of the antenna having the ability to be mounted vertically on a wall, by virtue...
A new design concept of a compact satellite antenna module for automotive application is presented, enabling mobile reception of all common navigation systems, e.g. GPS in L1&L2 bands, Galileo, GLONASS, BeiDou, as well as reception of satellite digital audio radio service (SDARS). A new design concept allows easy fabrication in combination with high reception properties. The performance of the...
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