Measurements of a leaky-wave ferrite isolator

被引:2
|
作者
Akyol, AS [1 ]
Davis, LE [1 ]
机构
[1] Univ Manchester, Inst Sci & Technol, Dept Elect & Elect Engn, Manchester M60 1QD, Lancs, England
关键词
ferrite; image guide; isolator; leaky wave; nonreciprocity; transverse magnetization;
D O I
10.1109/TMTT.2003.810148
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A single ferrite/dielectric image line is analyzed using the effective permittivity method adapted for ferrites. E-pq(x) modes are used in association with a transverse bias direction to obtain nonreciprocal behavior. It is shown that the required conditions can be obtained that enable the composite image line to guide in one direction and leak in the other. Thus, the structure behaves as a "leaky-wave isolator." Dispersion diagrams showing this behavior in the frequency range of 14-30 GHz are obtained for a 2 x 2 mm(2) ferrite (type TT1-390) rod with adjacent dielectric loading with epsilonr = 10. The structure is built and the bias is applied externally in a direction transverse to and in the plane of the direction of propagation. The required modes are excited and probed by semirigid coaxial cables mounted on vernier mechanisms. The S-parameters indicating the nonreciprocal behavior in the frequency range expected are shown.
引用
收藏
页码:1476 / 1481
页数:6
相关论文
共 50 条
  • [41] Scannable Leaky-Wave Antenna Based on Ferrite-Blade Waveguide Operated Below the Cutoff Frequency
    Shirkolaei, Morteza Mohammadi
    Ghalibafan, Javad
    IEEE TRANSACTIONS ON MAGNETICS, 2021, 57 (04)
  • [42] Tailoring Leaky-Wave Radiation with Impedance Surfaces
    Tierney, Brian B.
    Grbic, Anthony
    2014 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI), 2014, : 1548 - 1549
  • [43] Suppression of Stopbands in Periodic Leaky-Wave Antennas
    Liu, Juhua
    Yin, Shufen
    Cai, Shuangqi
    PROCEEDINGS OF THE 2021 CROSS STRAIT RADIO SCIENCE AND WIRELESS TECHNOLOGY CONFERENCE (CSRSWTC), 2021, : 72 - 74
  • [44] LEAKY-WAVE ANALYSIS OF OPTICAL PERIODIC COUPLERS
    PENG, ST
    TAMIR, T
    BERTONI, HL
    ELECTRONICS LETTERS, 1973, 9 (06) : 150 - 152
  • [45] BEAM SCATTERING BY NONUNIFORM LEAKY-WAVE STRUCTURES
    SAAD, A
    BERTONI, HL
    TAMIR, T
    PROCEEDINGS OF THE IEEE, 1974, 62 (11) : 1552 - 1561
  • [46] Broadband tapered microstrip leaky-wave antenna
    Hong, WC
    Chen, TL
    Chang, CY
    Sheen, JW
    Lin, YD
    IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2003, 51 (08) : 1922 - 1928
  • [47] Leaky-wave antenna with inclined slots in a waveguide
    Katrich, VA
    Martynenko, SA
    Pshenichnaya, SV
    IVTH INTERNATIONAL CONFERENCE ON ANTENNA THEORY AND TECHNIQUES, VOLS 1 AND 2, PROCEEDINGS, 2003, : 276 - 279
  • [48] Amplitude-Modulated Leaky-Wave Antennas
    Wu, Geng-Bo
    Zhang, Qing-Le
    Chan, Ka Fai
    Chen, Bao-Jie
    Chan, Chi Hou
    IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2021, 69 (07) : 3664 - 3676
  • [49] The Symmetry Secrets of Periodic Leaky-Wave Antennas
    Caloz, C.
    Otto, S.
    2014 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA), 2014, : 543 - 545
  • [50] SIW based Dirac Leaky-Wave Antenna
    Rezaee, Sina
    Memarian, Mohammad
    Eleftheriades, George V.
    2018 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, 2018, : 125 - 126