[go: up one dir, main page]

Love, 2003 - Google Patents

Spherical reflecting antennas with corrected line sources

Love, 2003

Document ID
15277275207854753508
Author
Love A
Publication year
Publication venue
IRE Transactions on Antennas and Propagation

External Links

Snippet

A portion of a spherical reflecting surface possesses inherent scanning advantages over a paraboloidal reflector. These advantages can only be realized, however, if spherical aberration is eliminated. A composite illuminator is described which does eliminate this form …
Continue reading at ieeexplore.ieee.org (other versions)

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q21/00Aerial arrays or systems
    • H01Q21/06Arrays of individually energised active aerial units similarly polarised and spaced apart
    • H01Q21/061Two dimensional planar arrays
    • H01Q21/065Patch antenna array
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q19/00Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic
    • H01Q19/10Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic using reflecting surfaces
    • H01Q19/12Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/132Horn reflector antennas; Off-set feeding
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q19/00Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic
    • H01Q19/06Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • H01Q19/062Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic using refracting or diffracting devices, e.g. lens for focusing
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q3/00Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system
    • H01Q3/12Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system using mechanical relative movement between primary active elements and secondary devices of aerials or aerial systems
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q3/00Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system
    • H01Q3/26Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q3/00Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system
    • H01Q3/26Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q25/00Aerials or aerial systems providing at least two radiating patterns
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q15/00Devices for reflection, refraction, diffraction, or polarisation of waves radiated from an aerial, e.g. quasi-optical devices
    • H01Q15/14Reflecting surfaces; Equivalent structures
    • H01Q15/16Curved in two dimensions, e.g. paraboloidal
    • H01Q15/161Collapsible reflectors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q21/00Aerial arrays or systems
    • H01Q21/24Combinations of aerial elements or aerial units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q13/00Waveguide horns or mouths; Slot aerials; Leaky-waveguide aerials; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10Resonant slot aerials
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q21/00Aerial arrays or systems
    • H01Q21/0006Particular feeding systems
    • H01Q21/0037Particular feeding systems linear waveguide fed arrays
    • H01Q21/0043Slotted waveguides
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q1/00Details of, or arrangements associated with, aerials

Similar Documents

Publication Publication Date Title
Olver Microwave horns and feeds
Hannan Microwave antennas derived from the Cassegrain telescope
Rotman Wide-angle scanning with microwave double-layer pillboxes
Dion et al. A variable-coverage satellite antenna system
US4855751A (en) High-efficiency multibeam antenna
Rusch The current state of the reflector antenna art
Yang et al. A novel high-gain sum and difference conical beam-scanning reflector antenna
Love Spherical reflecting antennas with corrected line sources
Yu et al. Dual-polarized linear array with overlapping handover of subarray to produce continuous beam scanning for transmitarray antenna
Song et al. Two-dimensional wide-angle multibeam flat GRIN lens with a high aperture efficiency
Karki et al. Low-profile scanloss-reduced integrated metal-lens antenna
Kawahara et al. Design of rotational dielectric dome with linear array feed for wide‐angle multibeam antenna applications
EP0741917B1 (en) Reconfigurable, zoomable, turnable, elliptical-beam antenna
WO2019170541A1 (en) Extreme scanning focal-plane arrays using a double-reflector concept with uniform array illumination
Borgiotti An antenna for limited scan in one plane: Design criteria and numerical simulation
Reutov et al. Focuser-based hybrid antennas for one-dimensional beam steering
Papathanasopoulos et al. Multi-layered flat metamaterial lenses: Design, prototyping and measurements
RU2188484C1 (en) Single-pulse radiator
Sikina et al. Variably inclined continuous transverse stub-2 antenna
Schell The multiplate antenna
Kaloshin et al. Synthesis of Planar Bifocal Two Mirror, Lens and Mirror-Lens Beamforming Systems
EP0164466B1 (en) High-efficiency multibeam antenna
Li et al. Research on a New Compound Antenna for Millimeter Wave/infrared Seeker
Ricardi et al. Multiple beam antennas
RU2815004C2 (en) Method for beam control in hybrid two-mirror antenna system and device for its implementation