Telecommunications and Radio Engineering

ISSN for PRINT: 0040-2508

For Online Access

Best Paper Award Selection - Editorial Board Site

2003, Volume60

Issue 3&4

158 pages

DOI: 10.1615/TelecomRadEng.v60.i34

Issue price - $394.00

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

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.

DOI: 10.1615/TelecomRadEng.v60.i34.30 Download article, 6 pages

Article price - $35.00

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