RU1827044C - Antenna - Google Patents

Abstract

Usage: as a self-contained antenna and an element of multi-frequency phased arrays with wide-angle scanning in communication and radar systems. SUMMARY OF THE INVENTION: The antenna comprises a first and second shielding metal plate (EMF) 1.2 parallel to each other and an exciting metal plate (EMF) 3 arranged between them. A first short-circuiting plate (CP) 4 connects the edges of the first and second EMFs 1.2. The introduction of a second KP 5 connecting the free edge of the second EMF 2 and the edge of the VMP 3 nearest to it leads to a decrease in the resonance size of the antenna. The antenna is excited by means of a coaxial cable 6. To reduce radiation, a third and fourth EMF located parallel to the first and second EMF, and a third and fourth KP connecting the short-circuited edges of the first and second EMF 1. 2 with the nearest edges of the third and fourth fourth emf. The lengths of the third and fourth electromagnetic fields from the short-circuited edge to the free edge are equal to a quarter of the wavelength 3 and the dielectric. 1 a. F-crystals, 3 ill.

Description

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The invention relates to antenna technology and can be used in communication and radar transmitting and receiving equipment with a shortage of space, as self-contained antennas and elements of multi-frequency phased arrays with wide-angle scanning.

An object of the invention is to reduce the resonant size and to reduce radiation into the posterior half-space.

Figure 1 presents the structural diagram of the antenna; figure 2 and 3 section aa in figure 1. .

The antenna contains the first 1 and second 2 shielding metal plates, the exciting metal plate 3, the first 4 and second 5 short-circuit plates, coaxial cable b.

On Fig.3 presents a structural diagram in section of an antenna having reduced radiation. In addition to these elements, the antenna contains a third 7 and a fourth 8 shielding metal plates, a third 9 and a fourth 10 short-circuit plates.

The space enclosed between the shielding metal plates can be completely or partially filled with a dielectric material with B 1. The space enclosed between the first and third 1, 7 and the second and fourth 2, 8 shielding metal plates must be filled with a dielectric material, the dielectric constant of which provides the length of the third and fourth shielding plates from short-circuited to the free edge equal to / log / 4.

The location bo of the supply coaxial cable is determined from the antenna matching conditions. The resonance size b is inversely proportional to the geometric dimensions I a and lies in the range 0.1-0.2 Dd.

Claims (2)

1.Antenna containing in parallel the first shielding metal plate, the exciting metal plate and the second rectangular shielding metal plate, the first connecting the edges of the first and second shielding metal plates, and the second short-circuit plates, a coaxial cable, the central conductor of which attached to the exciting metal plate, and the outer one to the second shielding metal platinum, characterized in that, in order to reduce the resonant size a, a second short-circuit plate is attached to the free edge of the second shielding metal plate and the edge of the exciting metal plate closest to it. , 2. The antenna according to claim 1. which, in order to reduce radiation in posterior half-space, third and fourth rectangular shielding metal plates introduced parallel to the first and second shielding metal plates, third and fourth short-circuiting plates connecting the short-circuited edges of the first and second shielding metal plates to the nearest the edges of the third and fourth shielding metal plates, respectively, with the length of the third and fourth shielding metal plates from short-circuited to the free edge equal to Лд / 4, where Ad is the wavelength in dielectric. T  r7 r -r r frTrjfsr-rrrrss, ff   -. Figure 1 (. If Xjrxf h J  f -. (G FIG. g