Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB30205/55A
Inventor
George Duckworth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kelvin Hughes Ltd
Original Assignee
Kelvin Hughes Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kelvin Hughes LtdfiledCriticalKelvin Hughes Ltd
Priority to GB30205/55ApriorityCriticalpatent/GB852322A/en
Publication of GB852322ApublicationCriticalpatent/GB852322A/en
H01Q21/0037—Particular feeding systems linear waveguide fed arrays
H01Q21/0043—Slotted waveguides
Landscapes
Non-Reversible Transmitting Devices
(AREA)
Abstract
852,322. Aerials. KELVIN & HUGHES Ltd. Jan. 21, 1957 [Oct. 21, 1955], No. 30205/55. Drawings to Specification. Class 40(7). A non-resonant aerial comprising a waveguide with spaced slot or dipole radiators along its length is terminated by a partially reflecting termination or such magnitude and phase of reflection coefficient that the variation of standing wave ratio from one to another of the portions separating the radiators is less than when the termination is fully absorbing. In one embodiment the termination comprises an adjustable peg entering the guide followed by a tapered wedge of a ferrite of such dimensions that it would normally constitute a fully absorbing load, Fig. 2 (not shown).
GB30205/55A1955-10-211955-10-21Improvements in and relating to linear array aerials
ExpiredGB852322A
(en)
Investigation of the atmosphere at low angles over the horizon by radio astronomy methods(Atmospheric radio emission temperature, radio wave refraction, and antenna gain refraction attenuation measurements at low angles over horizon using radio astronomy methods)
On the effect of a weak interplanetary magnetic field on the interaction between the solar wind and the geomagnetic field(Shock wave formation on interaction between solar wind & geomagnetic field- effect of weak interplanetary magnetic field)
Some data on the magnetic disturbances in the equatorial regions of the earth(Perturbation of magnetic disturbances diurnal variations in earth equatorial regions due to electrojet, noting magnetic storms aperiodicity)
Analysis of the dynamic response of the Rosman I antenna(Dynamic response of ground antenna with parabolic reflector to mechanical disturbances incurred during satellite tracking)
Problem of the analysis of the fading of a signal reflected from the ionosphere(Seasonal and diurnal fluctuation of radio wave in ionosphere in connection with fading process of reflected signal)
Radio observations of quasi-stellar radio sources(Radio observations of quasars, noting 60 identified with optical objects and dispersion of magnitude problem in distance measurement)
Summary of flight load environmental data taken on b-52 fleet aircraft(Atmospheric turbulence and gust load data obtained from b-52 flights and used in determining structural reliability criteria)
Measurement of resonance polarization in the chromosphere of the sun and its general magnetic field(Magnetic effect on polarization of resonance radiation in solar chromosphere)
Diurnal and seasonal variations in the intensity of phase-difference fluctuations or radio waves propagating in the atmospheric ground layer(Diurnal and seasonal phase-difference fluctuation measurement of radio waves propagating along ground layer caused by atmospheric turbulence)
Conferences and research in the fields of earth sciences and astronomy(Geology & astronomy- geomagnetic storms, cosmic radiation, climatology, stratospheric, and ionospheric studies)
Albedo and earth-radiation measurements from OSO-II(Albedo and earth radiation measurements from OSO-2 compared with other results, noting limb brightening effect)
Relation of correlated magnetic micropulsations and electron precipitation to the auroral substorm(Correlated magnetic micropulsations and electron precipitation data compared with auroral substorm phenomena)
Interplanetary electron concentration and variability measurements with Pioneer 6 and 7(Interplanetary electron concentration and phase and group path data from radio propagation experiments aboard Pioneer 6 and 7)