Aleksey O. Afonin, Alexander A. Alexandrovsky, Ilya V. Govorun, Alexander A. Leksikov, Andrey V. Ugryumov, Dmitriy K. Ogorodnikov, “Dual band HTSC power limiter”, J. Sib. Fed. Univ. Math. Phys., 2024, Volume 17, Issue 2,Pages <nobr>162

Dual band HTSC power limiter

Aleksey O. Afonin^a, Alexander A. Alexandrovsky^a, Ilya V. Govorun^ba, Alexander A. Leksikov^a, Andrey V. Ugryumov^a, Dmitriy K. Ogorodnikov^c

^a Kirensky Institute of Physics SB RAS, Krasnoyarsk, Russian Federation
^b Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
^c Siberian Federal University, Krasnoyarsk, Russian Federation

Abstract: A new construction of dual band HTSC power limiter is proposed. The device consists of two microstrip bandpass filters. Each filter consists of two quarter-wave resonators which couple through a composite half-wave resonator with HTSC-element. The prototype of the device in the open mode has operation passband of about 10% and 11% with central frequency being equal to 1.48 GHz and 2.03 GHz, the minimum loss in the passband is equal 1.9 dB and 1.7 dB for LF-channel and HF-channel correspondingly. The transfer characteristics of the device were investigated in the case of microwave power level up to 3.15 W.

Keywords: power limiter, microwave, HTSC, microstrip structure.

UDC: 537.621

Received: 10.03.2023
Received in revised form: 15.06.2023
Accepted: 04.10.2023

Language: English