Design and Analysis of a Band-Notched Staircase Ultra-Wideband Antenna

Abstract

Abstract-A compact ultra-wideband planar monopole antenna with a notched band at WLAN frequencies is presented. The antenna is fed using a finite ground coplanar waveguide and has a structure consisting of stair-shaped radiator and ground plane. The notched band is implemented by cutting two symmetrical narrow slits from the ground plane. The antenna is fabricated on a substrate with a dielectric constant of 4.4 and has a compact size of 18 × 26 × 1.6 mm 3 . Experimental and simulation results of the fabricated antenna are found to be in good agreement. The antenna achieves an average gain of 3 dBi and efficiency of more than 80% over the operational band. Time domain analysis, which includes the group delay response and fidelity calculation, implies that minimal distortion is introduced by the proposed antenna which makes it suitable for portable pulsed UWB systems.

A Novel Dual Band Hexagonal Antenna for Bluetooth and Uwb Applications With Single Band Notched

“…2.Ant III). The characteristics of SRRs and CSRRs have been studied in [19][20]. Usually, the length of the slot is made approximately equal to half the guided wavelength at the notch frequency of the band [21].…”

Design and Parametric Analysis of Hexagonal Shaped Mimo Patch Antenna for S-Band, Wlan, Uwb and X-Band Applications

“…Nowadays, ultra-wideband (UWB) technology plays an indispensable role in wireless communications because of its data transmission at high speeds, high security, low cost, and low power consumption. For commercial applications of UWB systems and to avoid interference between the other bands, Federal Communications Commission (FCC) officially assigned an unlicensed band from 3.1 GHz to 10.6 GHz with −41.3 dBm/MHz radiated power [1,2]. However due to signal fading in the multipath environment, the performance of UWB systems is degraded which leads to lesser efficiency in signal transmission and low-quality transmission.…”

A compact ultra‐wideband antenna with three C‐shaped slots for notched band characteristics

“…Different forms of slots realized to filter various frequency bands for example a rectangular slot (open‐ended quarter‐wavelength slot), U‐shaped slot, and elliptic slot . It is possible to create several notched bands from one to more than five according to Refs …”

“…4 It is possible to create several notched bands from one to more than five according to Refs. [13][14][15][16] In this letter, a compact UWB antenna with three C-shaped slots etched in the radiation patch is proposed to create notched band characteristics, the antenna has a compact size (30 × 30 mm 2 ) and covers a UWB impedance bandwidth between 3.1 GHz and 10.6 GHz. Three bands, WiMAX (3.2-3.8 GHz), C-band (3.7-4.2 GHz), and WLAN (5.15-5.85 GHz) are rejected by the C-shaped slots.…”