TY - JOUR
T1 - Design and performance of an electrically small slot loop antenna with a miniaturized superconducting matching circuit
AU - Tsutsumi, Y.
AU - Kanaya, H.
AU - Yoshida, K.
N1 - Funding Information:
Manuscript received October 5, 2004. This work was supported in part by a Grant-in-Aid for Scientific Research (B) from the Japan Society for the Promotion of Science (JSPS) and in part by a grant of Fukuoka project in the Co-operative Link of Unique Science and Technology for Economy Revitalization (CLUSTER) of the Ministry of Education, Culture, Sports, Science and Technology (MEXT).
PY - 2005/6
Y1 - 2005/6
N2 - In order to realize a small superconducting receiver, we designed an electrically small slot loop antenna with a miniaturized impedance matching circuit. The area of the slot loop antenna is 4 mm × 4 mm on MgO substrate at a frequency of 2.4 GHz. By applying 2-pole bandpass filter technique, we propose a design theory of the miniaturized impedance matching circuit that consists of coplanar waveguide (CPW) quarter and half wavelength transmission lines of meandering geometry and the impedance inverting circuits (J inverters). By using electromagnetic field simulator, we realized the circuit which matches the small radiation resistance R a = 0.776 Ω of the electrically small slot loop antenna to the feeder impedance Z 0 = 50 Ω, and attained the normalized bandwidth of 3%. We also made a preliminary experiment on this miniaturized antenna using a YBCO thin film on MgO substrate.
AB - In order to realize a small superconducting receiver, we designed an electrically small slot loop antenna with a miniaturized impedance matching circuit. The area of the slot loop antenna is 4 mm × 4 mm on MgO substrate at a frequency of 2.4 GHz. By applying 2-pole bandpass filter technique, we propose a design theory of the miniaturized impedance matching circuit that consists of coplanar waveguide (CPW) quarter and half wavelength transmission lines of meandering geometry and the impedance inverting circuits (J inverters). By using electromagnetic field simulator, we realized the circuit which matches the small radiation resistance R a = 0.776 Ω of the electrically small slot loop antenna to the feeder impedance Z 0 = 50 Ω, and attained the normalized bandwidth of 3%. We also made a preliminary experiment on this miniaturized antenna using a YBCO thin film on MgO substrate.
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U2 - 10.1109/TASC.2005.850187
DO - 10.1109/TASC.2005.850187
M3 - Article
AN - SCOPUS:22044456156
SN - 1051-8223
VL - 15
SP - 1020
EP - 1023
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 2 PART I
ER -