Topic
Parabolic reflector
About: Parabolic reflector is a research topic. Over the lifetime, 3375 publications have been published within this topic receiving 30735 citations. The topic is also known as: paraboloid reflector & paraboloidal reflector.
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Papers
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Book•
01 Jan 1970
TL;DR: In this paper, the authors present an analysis of reflector antennas covering electromagnetic field equations, computer aided design, and computer-aided design of reflectors for reflector antenna arrays.
Abstract: Monograph on analysis of reflector antennas covering electromagnetic field equations, computer aided design, etc
148 citations
TL;DR: In this article, a review of the other works carried out in the enhancement of optical and thermal efficiency of the solar PTC is presented along with the economic analysis of the PTC followed by the future research prospects in a parabolic trough collector and economic assessment models.
142 citations
Patent•
26 Jun 2001
TL;DR: In this paper, a parabolic reflector is used to suppress multiple reflection inside a horn, and to obtain excellent reflection loss characteristics and superior circular polarization axis ratio characteristics over a wide frequency range.
Abstract: PROBLEM TO BE SOLVED: To suppress multiple reflection inside a horn, and to obtain excellent reflection loss characteristics and superior circular polarization axis ratio characteristics over a wide frequency range. SOLUTION: A horn section 12 for receiving radio waves from a parabolic reflector is provided at the front opening of a case body 11, and at the same time a horn cover 21 is provided at the opening of the horn section 12. Inside the case body 11, a circular polarization generator 13 and a feeding section 14 are provided. In the circular polarization generator 13, a rod-shaped support section 22 is provided at the side of the horn section 12, a cylindrical dielectric 23 is provided at the tip in one piece. The cylindrical dielectric 23 is set to a length of approximately 1/4 wavelength of an incident radio wave multiplied by the wavelength reduction rate of the dielectric, and is positioned near the center of the opening at the horn section 12. The cylindrical dielectric 23 is provided independently of the horn cover 21, thus forming the horn cover 21 sufficiently thinly, suppressing the multiple reflection inside the horn without reducing the reception level of the antenna, and hence obtaining excellent electric characteristics.
141 citations
Patent•
31 Jan 2013
TL;DR: A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation as mentioned in this paper, and a parabolic dish is rotated about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed.
Abstract: A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed.
140 citations
TL;DR: In this paper, the effect of solar dish design features and factors such as material of the reflector concentrators, the shape of the reflective concentrators and the receiver, solar radiation at the concentrator, diameter of the parabolic dish concentrator and sizing the aperture area of concentrator were studied.
139 citations