On the design of compact UWB antenna with 7.5 GHz band- notch characteristics

Novel and Compact Ultra-Wideband Wearable Band-Notch Antenna Design for Body Sensor Networks and Mobile Healthcare System

“…For the design of an efficient UWB system for BSNs, an antenna needs to meet the special requirements in terms of impedance bandwidth, return loss, radiation efficiency, gain and radiation pattern. Recently, there has been tremendous growing research and interest realized for the design of UWB wearable antennas [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. UWB antenna design and radio channel modeling for WBANs have been presented in [3][4][5][6][7][8][9].…”

“…UWB antenna design and radio channel modeling for WBANs have been presented in [3][4][5][6][7][8][9]. Ultra-wideband band north antenna has been pretend in open literature in [12][13][14][15]. However, different authors have used various techniques to integrate band notch in UWB antennas [12][13][14][15].…”

“…Ultra-wideband band north antenna has been pretend in open literature in [12][13][14][15]. However, different authors have used various techniques to integrate band notch in UWB antennas [12][13][14][15]. Still now, there is no breakthrough in the design of UWB suitable band notch antennas.…”

“…In some articles, authors used band rejection for WiMAX and WLAN [9][10][11]14,15]. Band rejection technique has been used in UWB antennas for X-band downlink satellite communication systems (7.25-7.75 GHz) [13,14,16]. However, mostly UWB band notch antenna designs have been focused on FR4 substrate.…”

Design of reconfigurable monopole antenna with switchable dual band-notches for UWB applications

“…In [6], the impedance bandwidth has been successfully increased by cutting an inverted T-shaped slot on the radiating patch and adding an inverted T-shaped conductor to the ground plane. Furthermore, UWB antennas with one [7–11] or more band-notches [12–20] are proposed to avoid unexpected interferences with other existing wireless communication systems such as the WLAN operating in 5.15–5.35 and 5.725–5.825, and the WiMAX in 3.3–3.7. Changing the current flow on the radiating patch of the antenna with a narrow slot is one of the easy and commonly used technique to reject a fixed frequency band [7, 10].…”