SU1394291A1 - H-sectoral horn - Google Patents

Abstract

The invention relates to radio engineering. The purpose of the invention is to improve alignment with free space, increase gain and decrease weight. The horn contains wide walls (AL) 1, narrow walls (US 2. The edges of AL 1 are filled with curvilinear so-called. So that the el. Length of the rays from the phase center of the urpore, located on the line of intersection of the extensions of the US 2, to their edges in the opening is equal to the length of any beam from the phase center to the plane of the equal phase passing through the edges of the US 2. Due to the equalization of the plane of the equal phase, an increase in the gain occurs due to a smoother transition of the horn into the free space, the matching is improved. Part of AL 1, there is a decrease in the mass of a horn. 1 ill. (L

Description

;about

four

N0

x

L

. The invention relates to the field of radio engineering, namely to the antenna, technology.

The purpose of the invention is to improve alignment with free space, increase gain and weight reduction.

The drawing shows a structural diagram of the H-sector horn, top view.

The H-sector horn contains wide walls 1, narrow walls 2.

N-sector horn works as follows.

In the transmission mode, an electromagnetic wave propagates in the direction of expansion of the wide walls of the 1 H sectorial horn. Phase-wave velocity, in-cavity waves in the H-sector horn of Bbmie, than in free space. The edges of the wide walls of the 1 H-sector horn are curved so that the electrical length of the rays from the phase center of the H-sector pynopaV located on the line of intersection of the extensions of the narrow walls of the 2 H-sector horn, to their edges in the opening is equal to the electrical length of any beam from the phase center to the plane of equal phase passing through the edges of the narrow walls of the 2 H sectorial horn.

Thus, due to the equalization of the plane of the equal phase, the gain of the H-seitorial horn increases. Due to the smoother transition of the H-sector horn to the free space, the matching of the H-sectorial horn with is improved. free space. As part of the wide walls of the 2H sectorial horn is removed when making the notch, its mass decreases.

0

five

0 5

It was established experimentally that, for the K 3 values, an improvement in the matching and an increase in the gain is observed for all cover angles and longitudinal dimensions of the H-sector horn.

Claims (1)

Invention Formula An сsectorial horn, characterized in that, in order to improve coordination with the free space, increase the gain and reduce the mass, the edges of the wide walls of the H-sectorial horn are made in the form of segments of second-order curves whose focus lies in the middle of the wide the walls, outside the H-sector horn, and the second-order curves pass through the intersection points of concentric circles of radius R j l-Kul, lying in the plane of the wide walls of the H-sector horn, with straight lines x.1 called “- SLr ,,,  . k-1 where r ulff-K l / 4 (l-KM) sino6H V) KeZ, 1 is the distance from the origin to the edge of the narrow wall,, 2,3, ...; U1 is a step from a smaller radius of concentric circles (d1 1); (nd „- half angle of opening H-plane;   working wavelength in free space, and the centers of concentric circles lie on the line of intersection of the extensions of the narrow walls of the H-sectorial horn.