defected ground structure (DGS)
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A New Dual Side Cut Corner Circularly Polarized Rectenna 2.45 GHz with DGS
Abstract: This paper introduces a new dual side cut corner circular polarized (CP) high efficiency rectifying antenna (Rectenna) array. The Rectenna consists of a truncated square patch antenna and a rectifying circuit. The Rectenna use a micro-strip patch antenna as a frequency 2.45 GHz and gain of 31.29 dB. The Rectenna circuit has a low pass filter (LPF) the maximum RF to DC conversion efficiency of the Rectenna is 68%.
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 2, Issue 3, 2015 · pp. 19–23 Read article
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Compact Circularly Polarized Patch Antenna with U-Slot and Defected Ground
Abstract: A compact single-feed circularly polarized (CP) patch antenna at L-band is designed. The antenna contains a U-slot and is designed with DGS technique to reduce the size of antenna. With the presence of the U-slot, the antenna fabricated on a high-dielectric-constant (10.2) substrate achieves a reasonable axial-ratio bandwidth. The operating frequency is 1.521 GHz. The measured gain is 2.5 dBi, and bandwidth is 86.8 MHz.
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 16–20 Read article
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An Overview of Elliptical Low Pass Filter by using Defected Ground Structure Method
Abstract: Calculation and differentiation of the response of elliptical low pass filter (LPF) with and without using defected ground structure (DGS) was done. In the present work, return loss, bandwidth and gain have been evaluated. All the designs are printed on the FR4 lossy substrate of dielectric constant ( ) of 4.3, substrate thickness of 1.6 mm and loss tangent of 0.02. Moreover, the effect of controlling parameters namely slots and …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 2, 2017 · pp. 13–16 Read article