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Telecommunications and Radio Engineering
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v60.i34.30
6 pages

Broadband Echo-Box of Millimeter Wave Band for a Long-Time Delay of a Microwave Pulse Signal

Ye. M. Ganapolsky
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085, Ukraine

RÉSUMÉ

The paper presents a compact echo-box for a long-time delay of a microwave pulse signal of the millimeter wave range. Basically, the device is a quasioptical spherical resonator with a non-symmetrically ruby sphere placed inside. The ruby sphere eliminates the mode degeneracy and leads to the appearance of dense spectrum of nature oscillations. Due to the high Q-factor of the resonator, the echo-box is able to store the microwave signal power for quite a long time. In the case of a pulse signal, whose spectrum is wider than the spacing between two adjacent lines of the dense spectrum of the resonator, the echo-box has a wide effective transmission band. The device has the following characteristics: the central frequency is 36 GHz, the delay time is not less than 5 μsec with the potential of 100 dB, the transmission band is 2 GHz, the volume is 50 cm3, the weight is 300 g. The echo-box can be implemented in the automatic calibration and potential-control systems used for the measuring of the wave propagation characteristics in various media.


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