Bow-tie slot antenna fed by CPW

A Novel Ultra-Wideband Bow-Tie Slot Antenna in Wireless Communication Systems

“…Adding multiple round corners to the primary structure, the current distribution along the slots and the electrical fields on the slots are changed, which makes it easier to match the antenna over a very large frequency band. The obtained impedance bandwidth of 80% is superior to the antenna [3]. The measured data and the simulated ones of the proposed antenna are present in Fig.…”

“…The radiation patterns of the antenna are similar to the dipole antenna, and remain broadside and bidirectional. In addition, compared to the antenna [3], the proposed antenna is printed on a rectangle substrate which is processed easily, and the size of slots decreases for sharp corners changing into round corners. So the antenna is suitable for the wireless communication systems.…”

“…The proposed antenna can provide BW for most part of X-band (9.5 ∼ 12.4 GHz), part of K-band (18.0 ∼ 22.4 GHz) and the whole Ku-band (12.4 ∼ 18 GHz). Compared to the one [3], bandwidth increase more than twice. The numerical analysis is performed with the Ansoft High-frequency Structure simulator (HFSS), which is based on the finite element method.…”

“…To enhance the bandwidth of CPW-fed bow-tie slot antenna, some techniques have been proposed, including the use of a tapered metal stub to achieve impedance matching [1], the use of inductive coupling [2,6], and the adjustment of slot flare angle to enhance bandwidth [3,4].…”

Characteristics of Bow-Tie Slot Antenna With Tapered Tuning Stubs for Wideband Operation

“…A number of bow-tie slot designs are introduced in [2][3][4][5][6][7], which demonstrate wide percentage BW that range from 17% to 40%. In this paper, a bow-tie slot antenna with tapered tuning stubs is introduced.…”