IMPEDANCE MATCHED COMPACT ZIGZAG MULTIBAND INVERTED-F ANTENNA FOR WI-FI, MOBILE WIMAX, BLUETOOTH AND WLAN OPERATIONS IN PORTABLE DEVICES

Multiband loaded inverted F antennas suitable for use in mobile devices have been proposed as internal antennas with high gain characteristics for mobile WiMAX, Wi - Fi, Bluetooth and WLAN operation. Numerical simulation was carried out using the moment method of numerical electromagnetic field simulation (NEC - 2). The proposed double inverted F antenna is suitable for 5/5 GHz, and the compact 3 frequency inverted F antenna is suitable for 4 / 3.5 / 5.2 GHz operation. In the case of dual IFA and triple IFA, the total area occupied by the antennas is 24 mm × 37 mm and 29 mm × 37 mm, respectively.

This article covers wireless technologies in the WLAN, WPAN, and WWAN domains, among others, IEEE 802.11 WLAN (commonly referred to as Wi-Fi®), WPAN Bluetooth (BT), and WWAN's WiMAX as a representative technology . It draws the conclusion by discussing important aspects of technical media access and connectivity to wired networks and by listing some general (false) recognition of wireless technology. IEEE (Institute of Electrical and Electronics Engineers) defines three major WLAN types, 802.11b and g 802.11a operating in the 2.4 GHz band and 802. 11 a operating in the 5 GHz band. The unlicensed part of the electromagnetic spectrum, partially specified for industrial, scientific and medical (ISM) applications, is commonly referred to as the ISM band. Operation in the GHz band

WiMAX is a steroid-based Wi-Fi - clarification, which is too simplistic and is often used in commercial media. Compared to Wi-Fi, WiMAX operates in licensed spectrum and uses a different network architecture. Wi-Fi is an unlicensed spectrum and uses a simple wired Ethernet access point. The overlay function is used to return Wi-Fi traffic. This can be done via Wi-Fi (usually 802.11a) or WiMAX. Wireless and wireless technologies consume more power - this is usually the case if the device is continuously transmitting or if it is necessary to increase the power due to the distance between the transmitter and the receiver That applies. Noisy channels also contribute to this power usage. However, by carefully designing the wireless implementation and technology, such as power saving (Wi-Fi) and short duty cycle transmission, the power requirement can be reduced.