1. Circular Fractal UWB Antenna :
- A new circular fractal patch antenna with UWB characteristics is proposed.
- It achieves an impedance bandwidth of 7.33 GHz and a high measured gain of 6.52 dB.
- Designed for telecommunication applications covering WLAN, WiMAX, C, and X bands.
2. Corner Etched Rectangular UWB Antenna:
- A compact rectangular UWB antenna with corner etching and modified ground plane is presented.
- Operates in the 3.25-14.63 GHz UWB frequency range.
- Compact size of 0.44λ0 x 0.38λ0 x 0.02λ0 with good radiation characteristics and gain.
- Fabricated on low-cost FR-4 substrate.
3. Compact UWB Antenna with WLAN Notch Band:
- A geometrically simple, compact, and high-gain (4.93 dBi) UWB antenna with a WLAN notch band is proposed.
- Size of 0.11λ x 0.19λ x 0.002λ operating from 3-14.55 GHz with 4.59-5.82 GHz notch band.
- Employs a stub-loaded printed structure on a thin substrate.
- Suitable for applications requiring low interference.
4. Flower Bud-Shaped Flexible UWB Antenna:
- A flexible UWB antenna shaped like a flower bud is designed for healthcare applications.
- Uses a flexible foam substrate (εr = 1.07) with a copper foil radiating element.
- Covers the 3.1-10.6 GHz UWB range defined by FCC.
- Conformal, lightweight, and can be integrated into wearable devices/clothing.
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