초록 ▼

A TV receiving antenna with broad band and capable of connecting with a coaxial cable comprising a sheet of electrically non-conductive synthetic plastic material; a pair of antenna elements of metallic foil in the shape of substantially a triangle or a combination of a triangle and a rectangle bein

A TV receiving antenna with broad band and capable of connecting with a coaxial cable comprising a sheet of electrically non-conductive synthetic plastic material; a pair of antenna elements of metallic foil in the shape of substantially a triangle or a combination of a triangle and a rectangle being superimposed on one side of said sheet, a pair of frequency compensating members of snake-shaped strip line of metallic foil connected to said antenna elements respectively being superimposed on the one side of said sheet; a pair of antenna elements of metallic foil in the shape of a trapezoid or a combination of a trapezoid and a rectangle being superimposed on the opposite side of said sheet; a pair of frequency compensating members of snake-shaped strip line of metallic foil connected to said antenna elements respectively being superimposed on the opposite side of said sheet; and impedance transformers of microstrip lines of metallic foil on each side of said sheet also superimposed for matching the antenna elements and the coaxial cable. Each antenna element can have a plurality of parallel slots for the selection of polarization. The antenna can receive TV signals both in UHF and in VHF bands and eliminate ghosts. It is suitable for mass production by etching the patterns on a laminated sheet for printed circuits.

대표청구항 ▼

A TV receiving antenna with broad band, and capable of connecting with a coaxial cable, comprising: a sheet of electrically non-conductive synthetic plastic material; a pair of substantially triangular antenna elements of metallic foil being superimposed on one side of said sheet; a pair of frequenc

A TV receiving antenna with broad band, and capable of connecting with a coaxial cable, comprising: a sheet of electrically non-conductive synthetic plastic material; a pair of substantially triangular antenna elements of metallic foil being superimposed on one side of said sheet; a pair of frequency compensating members of metallic foil connected to said triangular antenna elements respectively and being superimposed on the one side of said sheet; a pair of substantially trapezoidal antenna elements of metallic foil being superimposed on an opposite side of said sheet; a pair of frequency compensating members of metallic foil connected to said trapezoidal antenna elements respectively and being superimposed on the opposite side of said sheet; a first impedance transformer of metallic foil superimposed on the one side of said sheet and being connected to one of the frequency compensating members on the one side of said sheet and to a corresponding frequency compensating member on the opposite side of said sheet; and a second impedance transformer of metallic foil superimposed on the opposite side of said sheet and being connected to one of the frequency compensating members on the opposite side of said sheet and to a corresponding frequency compensating member on the one side of said sheet.