Conformal transmitting antenna structure for sounding rocket

Abstract

A conformal transmitting antenna structure for a sounding rocket comprises two antenna shells of a semi-cylindrical sheet structure, and the two antenna shells are in butt joint to form a complete circular ring structure; an even number of antenna arrays are transversely and evenly distributed on the outer wall of a single antenna shell, and a power divider is arranged between every two antenna arrays. A plurality of power dividers are used for processing antenna signals, and finally conformal signals are formed. According to the invention, the cylindrical antenna distribution is used, and a corresponding number of antenna arrays are configured, so the omnidirectional directional characteristic of the sounding rocket antenna is achieved, the sounding rocket antenna is quasi-omnidirectional, the directional blind area angle gain is controlled within the minimum + / -3.8 degrees when the directional blind area angle gain is more than-10dBi; the high-precision blind area optimization angle effectively ensures that the sounding rocket can accurately communicate with the ground in the flight process under the multi-attitude conditions of rotary flight and the like, and the flight task can be well and quickly completed.

Description

technical field [0001] The present invention relates to antenna structures, in particular to a conformal transmitting antenna structure for sounding rockets. Background technique [0002] As an essential transmitting terminal of the model, the transmitting antenna is responsible for the important task of transmitting electromagnetic signals. Due to the special space of sounding rockets, most of the transmitting antennas need conformal design, and the conformal shape has a great influence on the pattern. Therefore, most types of conformal antennas adopt directional emission to reduce the difficulty of design. However, in some special applications, The directional antenna cannot meet the requirements of the model task, and the omnidirectional pattern design of the conformal antenna is required. Most of the previous transmitting antennas are single-element directional antennas, and no relevant research has been carried out on the synthesis technology of the transmitting antenna...

AI Technical Summary

Problems solved by technology

During the flight of the sounding rocket, there are multiple attitudes such as rotation. In order to effectively ensure that the rocket can communicate accurately with the ground during the flight, the directional antenna cannot meet the requirements of use in this state, and an omnidirectional or quasi-omnidirectional antenna is required. Communication, and all current omnidirectional or quasi-omnidirectional antennas still have blind spots in the direction of the antenna

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