Broadband Sounding Rocket Antenna for Dual-Band Telemetric and Payload Data Transmission

Abstract

International audienceThis paper presents and investigates a broadband sounding rocket antenna developed for dual-band data transmission of telemetric and payload systems. This single-element antenna permits the use of both the well-established 869.4-869.65 MHz and 2.4-2.4835 GHz frequency bands available in Europe to implement a redundant transmission of telemetric and tracking data desired for reliability. Furthermore, the available spectrum in the upper band offers a high-speed wireless link for transmitting payload data. To preserve the mechanical integrity and aerodynamics of rocket, the antenna is integrated in its nose cone. The proposed low-cost and low-weight structure is based on PCB (Printed Circuit Board) pieces assembled in a LEGO-like manner to form a broadband 3-Dimentional (3-D) bi-conical antenna, which is fed by a diplexer integrated in its base. A prototype has been fabricated, and validated using a reduced-length fuselage in a near-field measurement system

Programa Computacional para Cálculo de Radioenlaces de Foguetes de Sondagem

“…Na literatura, encontram-se trabalhos, como [8] e [9], que descrevem técnicas para o cálculo da potência recebida nos radioenlaces dos foguetes considerando somente alguns estágios do voo, i.e., não estimam a potência ponto a ponto na trajetória. Essas publicações costumam utilizar um valor constante para o fator de descasamento de polarização em todo o voo, o que nem sempre é válido em situações reais.…”

Analisis Kinerja Antena Blade 2.4 GHz Hasil Fabrikasi untuk Roket

“…Agar pengiriman data ini sukses, maka berbagai komponen pendukung transmisi perlu diperhatikan. Salah satu 10.47028/j.risenologi.2022.72.364 komponen penting dalam suatu sistem telemetri roket tersebut adalah antena pemancar yang dipasang pada roket untuk mentransmisikan sinyal (Causse et al, 2021;Pascawati et al, 2018;Prades et al, 2015).…”

Excitation of a Conducting Cylinder Using the Theory of Characteristic Modes

“…There are several experiments in the designing of antennas for rockets that have been conducted where different types of antennas have been discovered, e.g. printed broadband [1], microstrip [2] and blade [3] antennas. However, it is also essential to ensure that the antenna shape should not disturb the aerodynamics of the rocket [4].…”