Square/hexagonal split ring resonator loaded exponentially tapered slot ultra wideband (UWB) antenna with frequency notch characteristics

Abstract

A new design of exponentially tapered slot UWB antenna with frequency notch characteristics is proposed in this letter. The microstrip line feed of the antenna is loaded with a pair of SRRs which controls the notch frequencies. For proof of concept and versatility, two different SRR geometries, square SRR (S‐SRR) and hexagonal SRR (H‐SRR), are used to obtain the frequency notches. Fabricated prototypes are measured and their impedance and radiation characteristics are validated with the simulation results. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1241–1245, 2017

A compact filtering UWB antenna with band-notched function

“…The design of notch frequency can be adjusted by controling the current patch on the microstrip line, which is more simple and convenient. The size of the proposed antenna is 24 mm  12 mm, which is smaller than that of the relevant works in [2,4,6,7,8,9,10,11,12,13,14,15,16]. The ratio of the −3 dB bandwidth to the −10 dB bandwidth is 1.038, which is very close to 1.…”

“…Although the shape factor is reduced to 1.078 [12] and 1.08 [13], the size of the antenna is 53 mm  22 [12] and 53 mm  42 mm [13], which are still relatively large. For in-band interference, the antenna usually uses slot [7,8,14] or parasitic structure [15]. In [16], Wong et al proposed a planar filtering UWB antenna with four shorting pins to achieve desired selectivity properties, and the size is compact with an overall dimension of 28:5 mm  28 mm.…”

Analysis of Tapered Slot Antenna With High Gain for 2D Indoor Wireless Positioning

“…The VSWR is measured using a network analyser (N5230A, Agilent Co.) to analyse the impedance bandwidth of an antenna; the radiation pattern and the realized gain are analysed in an anechoic chamber (Korea Daejeon Techno Park Co.). Signal processing for the indoor wireless positioning technology consists of a raw data collection step, a clutter reduction step, a signal attenuation compensation step, and a detection step [11], [12]. The fabricated antenna is compared with similar antennas for UWB systems; this comparison is shown in Table 1.…”

Design and Parametric Analysis of Beveled Uwb Triple Band Rejection Antenna

“…Initially, microwave filters are used for band rejection, but this method is complex and costly [2]. Thus, instead of using filters, UWB antennas are designed with band rejection feature by introducing slots into radiator or ground structure [3,4], parasitic elements on either sides of substrate [5,6], SRR [7,8], CSRR [9], and EBG [10]. Moreover, UWB antennas are designed with single [11], double [12], triple [13], multiple [14,15] band notch characteristics, and an array of UWB elements with side lobe suppression are reported [16,17].…”