Compact printed high rejection triple band-notch UWB antenna with multiple wireless applications

AbstractA coplanar waveguide (CPW) fed circular slot ultra-wideband (UWB) antenna with triple band-notched characteristics is proposed and its performance is evaluated by HFSS simulation and measurement. The three notch bands are realized by means of two arc-shaped parasitic elements (ASPEs) and an E-shaped stub (ESS). By adjusting the dimensions of the ASPEs and ESS, three notch bands can be tuned to filter unwanted 3.5 GHz WiMAX, 5.5 GHz WLAN and 8 GHz X-band signals. The simulated and measured results demonstrate that the proposed antenna covers the entire UWB band with voltage standing wave ratio (VSWR) less than 2 and provides three notch bands to reduce potential interferences from existing narrowband systems. Furthermore, this tri-band frequency rejection UWB antenna can provide omnidirectional radiation patterns and high rejection band-notched characteristics, which are suitable for UWB communication applications.

Download Full-text

Planar high rejection dual band-notch UWB antenna with X & Ku-bands wireless applications

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078717000393 ◽

2017 ◽

Vol 9 (8) ◽

pp. 1725-1733 ◽

Cited By ~ 6

Author(s):

Manish Sharma ◽

Yogendra Kumar Awasthi ◽

Himanshu Singh

Keyword(s):

Satellite Communication ◽

Directional Pattern ◽

Dual Band ◽

Impedance Bandwidth ◽

Uwb Antenna ◽

Wireless Applications ◽

X Band ◽

Close Range ◽

High Rejection ◽

High Band

In this paper, a vase-shaped monopole antenna is presented for dual band notch (WiMAX IEEE802.16 3.30–3.80 GHz with C-band 3.80–4.20 GHz and WLAN IEEE802.11a/h/j/n 5.15–5.35 GHz, 5.25–5.35 GHz, 5.47–5.725 GHz, 5.725–5.825 GHz) UWB and other wireless services (close range radar: 8–12 GHz in X-band & satellite communication: 12–18 GHz in Ku-band). Measured VSWR of proposed antenna shows a high band-rejection for WiMAX along with C-band with VSWR = 25.33 at 3.77 GHz and WLAN with VSWR = 6.0 at 5.64 GHz is achieved by cutting two C-shaped slots on the radiating patch. Designed antenna covers a wide usable fractional bandwidth 160% (2.58–20.39 GHz). Furthermore, the measured gain of antenna is relatively stable across the impedance bandwidth except band-notched. In addition, antenna offers omni-directional pattern, reasonably small 20 × 20 × 0.787 mm3and easy to construct structure.

Download Full-text

A compact UWB antenna with triple band notch reconfigurability

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078720001580 ◽

2020 ◽

pp. 1-7

Author(s):

Lei Li ◽

Jingchang Nan ◽

Jing Liu ◽

Chengjian Tao

Keyword(s):

Coplanar Waveguide ◽

Ring Resonators ◽

Uwb Antenna ◽

Split Ring ◽

X Band ◽

Compact Size ◽

Nested Structure ◽

P Type ◽

Good Agreement ◽

Triple Band

Abstract A compact ultrawideband (UWB) antenna with reconfigurable triple band notch characteristics is proposed in this paper. The antenna consists of a coplanar waveguide-fed top-cut circular-shaped radiator with two etched C-shaped slots, a pair of split-ring resonators (SRRs) on the backside and four p-type intrinsic n-type (PIN) diodes integrated in the slots and SRRs. By controlling the current distribution in the slots and SRRs, the antenna can realize eight band notch states with independent switch ability, which allows UWB to coexist with 5G (3.3–4.4 GHz)/WiMAX (3.3–3.6 GHz), WLAN (5.15–5.825 GHz), and X-band (7.9–8.4 GHz) bands without interference. By utilizing a nested structure of C-shaped slots and SRRs on the backside, a compact size of 18 × 19.5 mm2 is achieved along with multimode triple band notch reconfigurability. The antenna covers a bandwidth of 3.1–10.6 GHz. A prototype is fabricated and tested. The simulated and experimental results are in good agreement.

Download Full-text