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Dual reflector polarization transformers
Antennas and Propagation Society Symposium 1991 Digest, 2002A few different kinds of first-order partial differential equation (PDE) are presented to shape the subreflector surface in a dual-reflector antenna, transforming the given polarization distribution of the incident toroidal wave to that given over the plane wave. The main reflector is calculated as soon as the subreflector is known.
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Polarization Error Compensation in Dual-Polarization IFOGs
2017In this chapter, two kinds of dual-polarization IFOGs are designed and experimentally tested, and the phenomenon of polarization nonreciprocity (PN) error compensation between two polarizations is observed. The experimental structures ensure that two polarizations are independent for rotation sensing.
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Acta Mathematica Sinica, 1996
Summary: Assume \(K\) is a rotor in a regular simplex of height 1 in an \(n\)-dimensional Euclidean space. Let \(K^*\) denote the polar dual of \(K\). Then the volume \(V(K^*)\) satisfies the inequality \[ V(K^*) \geq (n + 1)^n \omega_n, \] where \(\omega_n\) denotes the volume of an \(n\)-dimensional unit ball. Equality holds if and only if \(K\) is a
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Summary: Assume \(K\) is a rotor in a regular simplex of height 1 in an \(n\)-dimensional Euclidean space. Let \(K^*\) denote the polar dual of \(K\). Then the volume \(V(K^*)\) satisfies the inequality \[ V(K^*) \geq (n + 1)^n \omega_n, \] where \(\omega_n\) denotes the volume of an \(n\)-dimensional unit ball. Equality holds if and only if \(K\) is a
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2009
This invention relates to an antenna (1 ) of the type comprising a casing (3) having a reflector (5) defining a slot (7) and a PCB board (9) carrying a plurality of radiating elements (10) and a feed harness (11 ). The radiating elements and the feed harness form a dual polarized antenna pattern. The PCB is mounted in the casing and protrudes outwardly
BROWNE JAMES +3 more
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This invention relates to an antenna (1 ) of the type comprising a casing (3) having a reflector (5) defining a slot (7) and a PCB board (9) carrying a plurality of radiating elements (10) and a feed harness (11 ). The radiating elements and the feed harness form a dual polarized antenna pattern. The PCB is mounted in the casing and protrudes outwardly
BROWNE JAMES +3 more
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We propose a unified conceptual and mathematical framework in which gravity exists in two conserved and interacting modes: Attractive Gravity (AG), which is locally bound to mass, and Repellent Gravity (RG), which exists as a free, dispersed substrate permeating the cosmos.
Liles, Steven +1 more
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Liles, Steven +1 more
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