Dual-Band SIW Band-Pass Filter Using Defected Ground Structures
چکیده
This paper presents a modification of a previously reported single-band substrate integrated waveguide (SIW) bandpass filter to achieve dual-band performance. By introducing two vertical slots in the ground plane and increasing the port spacing, an additional resonant mode is generated without significantly enlarging the circuit size. Full-wave simulations using HFSS show that the proposed structure operates at 3.14 GHz and 4.43 GHz with reflection coefficients better than −24 dB. The corresponding insertion losses are approximately 0.6 dB and 0.7 dB, respectively. The proposed method provides a simple and efficient way to transform conventional single-band SIW filters into dual-band devices.
کلمات کلیدی:
substrate integrated waveguide (SIW), , dual-band, band-pass filter, symmetrical vertical ground slots , compact sizeچاپ شده
2026-02-25
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نوع مقاله
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ارجاع به مقاله
ایزدی م. م., بختیاری پور ف., پژمان م. م., & دانائیان م. (2026). Dual-Band SIW Band-Pass Filter Using Defected Ground Structures. چهارمین کنفرانس توسعه علوم مهندسی. https://doi.org/10.48314/des.vi.110
