Miniaturized Microstrip-to-Waveguide Transition Using Capacitance-Compensated Broadside-Coupled Microstrip Line
Miniaturized Microstrip-to-Waveguide Transition Using Capacitance-Compensated Broadside-Coupled Microstrip Line
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DOI：
10.1109/tcpmt.2013.2244644
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发表时间：
2013-02
期刊：
影响因子：
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通讯作者：
R. Fang;Chun-Long Wang
中科院分区：
文献类型：
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作者：
R. Fang;Chun-Long Wang
在本文中，提出了一种使用四分之一波长宽边耦合微带线（BCML）的紧凑型微带到波导的过渡。该过渡的 15dB 分数带宽为 20.95%，只能覆盖部分 X 频段 (8.2-12.4 GHz)。为了提高带宽，采用电容补偿BCML来代替四分之一波长BCML。使用电容补偿 BCML 的微带到波导过渡与使用四分之一波长 BCML 的过渡一样紧凑，具有 37.33% 15 dB 分数带宽，几乎覆盖整个 X 波段。为了验证仿真结果，使用四分之一波长 BCML 或电容补偿 BCML 制造并测量了背对背微带到波导的过渡，其中测量结果与两种设计的仿真结果非常一致。
In this paper, a compact microstrip-to-waveguide transition using the quarter-wavelength broadside-coupled microstrip line (BCML) is proposed. The 15-dB fractional bandwidth of this transition is 20.95%, which could only cover part of the X-band (8.2-12.4 GHz). In order to enhance the bandwidth, the capacitance-compensated BCML is used to replace the quarter-wavelength BCML. The microstrip-to-waveguide transition using the capacitance-compensated BCML, which is as compact as the transition using the quarter-wavelength BCML, has 37.33% 15-dB fractional bandwidth, almost covering the whole X-band. To verify the simulation results, back-to-back microstrip-to-waveguide transitions using the quarter-wavelength BCML or the capacitance-compensated BCML are fabricated and measured where the measurement results are in good agreement with the simulation results for both designs.