C
Charles M. Knop
Researcher at Andrew Corporation
Publications - 29
Citations - 969
Charles M. Knop is an academic researcher from Andrew Corporation. The author has contributed to research in topics: Feed horn & Reflector (antenna). The author has an hindex of 11, co-authored 29 publications receiving 968 citations.
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Patent
Dual reflector microwave antenna
TL;DR: In this paper, a dual-reflector microwave antenna consisting of a paraboloidal main reflector having an axis; a waveguide and dual-mode feed horn extending along the axis of the primary reflector, a subreflector for reflecting radiation from the feed horn onto the main reflectingor in the transmitting mode, and a shield extending from the outer edge of the main reflectors and generally parallel to the axis, the inside surface of the shield being lined with absorptive material for absorbing undesired radiation.
Patent
Flared microwave feed horns and waveguide transitions
Saad S. Saad,Charles M. Knop +1 more
TL;DR: In this article, a horn-reflector antenna comprising a paraboloidal reflector for transmitting and receiving microwave energy, and a flared feed horn for guiding microwave energy to and from the reflector, the longitudinal shape of at least a section of the horn at the end where the horn begins to flare outwardly was defined by the equation.
Patent
Dual mode feed horn or horn antenna for two or more frequency bands
TL;DR: In this paper, the slope of the inside wall of a conical waveguide is selected to cancel the electric field at the aperture of the horn in the higher frequency band, thereby producing substantially equal power patterns in the E and H planes in the high frequency band.
Patent
Dual-polarized shaped-reflector antenna
TL;DR: In this article, a hog-horn antenna is designed to produce substantially equal gains for orthogonal polarizations, either simultaneously or separately, by corrugating or absorber-lining the surfaces of portions of the antenna.
Patent
Overmoded tapered waveguide transition having phase shifted higher order mode cancellation
Saad S. Saad,Charles M. Knop +1 more
TL;DR: In this article, a phase-overmoded, tapered waveguide transition has a central section which is tapered linearly in the longitudinal direction and two end sections which are tapered curvilinearly in a longitudinal direction.