Īntennas design for wireless communication systems has attracted a great interest during the last years. Recently, wireless communication for wireless local area network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) have experienced tremendous growth. The U-NII band can be divided into three subbands as U-NII low band (frequency range 5.15–5.35 GHz), U-NII mid band (frequency range 5.47–5.725 GHz), and U-NII high band (frequency range 5.725–5.875 GHz). Unlicensed National Information Infrastructure (U-NII) band is used in WLAN, Bluetooth, and Wi-Fi operations. The first band extends from 5.15 to 5.25 GHz, the second from 5.25 to 5.35 GHz, and the third from 5.725 to 5.825 GHz. The IEEE 802.11a operates at three bands. Today, WLANs based on the IEEE 802.11 standard are considered a practical and interesting solution of network connection offering mobility, flexibility, and low cost of deployment and use. Recently, WLANs have gained a strong popularity and great place in the local area network (LAN) market. Wireless networks provide all of the features and benefits of traditional local area network technologies such as Ethernet and Token Ring without the limitations of wires and cables. Broadband wireless technologies are increasingly gaining popularity by the successful global deployment of the Wireless Personal Area Networks WLAN in IEEE 802.11 a/b, Wireless Metropolitan Area Networks (WiMAX-IEEE 802.16a), and bands of the Unlicensed National Information Infrastructure (U-NII). This technology enables two or more computers to communicate using standard network protocols. Wireless networking represents the future of computer and Internet connectivity worldwide. The world of wireless telecommunications evolves rapidly. The analysis of the simulated results confirms the successful design of quad-band bowtie antenna. An excellent agreement is achieved for all the designed antennas. To validate the proposed equivalent circuit model, the simulation results are compared with those obtained by the moments method of Momentum software, the finite integration technique of CST Microwave studio, and the finite element method of HFSS software.
Cst microwave studio for low frequencies edaboard Bluetooth#
The proposed antenna is designed to satisfy specific bandwidth specifications for current communication systems including the Bluetooth (frequency range 2.4–2.485 GHz) and bands of the Unlicensed National Information Infrastructure (U-NII) low band (frequency range 5.15–5.35 GHz) and U-NII mid band (frequency range 5.47–5.725 GHz) and used for mobile WiMAX (frequency range 3.3–3.6 GHz). The simple configuration and low profile nature of the proposed antenna lead to easy multifrequency operation. A novel configuration of quad-band bowtie antenna suitable for wireless application is proposed based on accurate equivalent circuit model.
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