Abstract
A compact band-notched UWB (Ultra-Wide Band) antenna with integrated Bluetooth is developed for personal wireless communication and UWB applications. The antenna operates at the UWB frequency band (3.1–10.6 GHz) as well as Bluetooth (2.4–2.484 GHz), with band-notch characteristics at the Wireless Local Area Network (WLAN) frequency band (5–6 GHz). A new technique of integrating Bluetooth within a UWB band-notched antenna is developed and analyzed. The UWB frequency band is realized by utilizing a conventional cylindrical radiating patch and a modified partial ground plane. The Bluetooth band is integrated using a miniaturized resonator with the addition of capacitors. Further, to mitigate the interference of the WLAN frequency band within the UWB spectrum, a conventional slot resonator is integrated within the radiator to achieve the task. The antenna is designed and fabricated, and its response in each case is provided. Moreover, the antenna exhibits a good radiation pattern with a stable gain in the passband. The present antenna is also compared to state-of-the-art structures proposed in the literature. The miniaturized dimensions (30 × 31 mm2) of the antenna make it an excellent candidate for UWB and personal wireless communication applications.
Highlights
UWB (Ultra-Wide Band) antennas have been a main technological interest for the last decade due to their large bandwidth, small electrical size, good phase linearity, low cost, and advantageous radiation pattern [1,2,3,4,5]
The reflection coefficient of the reference UWB antenna is shown in Figure 3, which clarifies that antenna operated from 3.1 GHz to 10.6 GHz
A simple and compact band-notched UWB (Ultra-Wide Band) antenna with integrated Bluetooth was developed for personal wireless communication and UWB applications
Summary
UWB (Ultra-Wide Band) antennas have been a main technological interest for the last decade due to their large bandwidth, small electrical size, good phase linearity, low cost, and advantageous radiation pattern [1,2,3,4,5]. Wireless Personal Area Network (WPAN) technology with an IEEE. The development of UWB communication technology offers an encouraging solution for the IEEE 802.15 standard of WPAN. In 2001, IEEE 802.15 provided the foundation for an IEEE 802.15.3a Study Group, who attempted to define a new standard for WPAN based on a physical layer of UWB that increased their bit rates to 500 Mbps [6]. The SIG (Special Interest Group) of Bluetooth selected the WiMedia Alliance MB-OFDM (Multiband orthogonal frequency division multiplexing) version of UWB in 2006, which made it Electronics 2019, 8, 158; doi:10.3390/electronics8020158 www.mdpi.com/journal/electronics. Electronics 2019, 8, 158 possible to integrate UWB with Bluetooth. Researchers started to integrate Bluetooth within UWB antennas [7]
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