DUAL‐BAND antenna for WLAN/UWB applications

Abstract

fabrication process. The predicted and measured frequency responses of the S-magnitude are shown in Figure 5 and illustrated in good agreement with each other. The measured 1 dB passband is in the range of 4.6-5.1 GHz and its measured return loss is less than À14 dB. The upper-stopband in experiment is greatly extended up to 25 GHz with an insertion loss larger than 20 dB. CONCLUSIONSIn this work, a compact BPF with good in band and wide upper-stopband performances is proposed and designed using the open stub loaded dual-mode resonator. The advantageous feature of the dual-mode resonator is that the even-mode resonance frequency can be controlled exclusively by the discshaped open stub. Two other pairs of open stubs are mainly applied to suppress the high harmonic resonant modes and obtain good match, respectively. The simulated results are finally verified by our experiment of the fabricated filter. ACKNOWLEDGMENTThis work was supported in part by the China South-East University State Key Laboratory of Millimeter Waves. ABSTRACT: In this article, we have proposed a dual-band (WLAN/ UWB) antenna with open stub for WLAN/UWB applications. The designed dual-band antenna consists of a rectangular radiating patch, open stub, three steps for impedance matching, and coplanar waveguide feeding. The proposed antenna is fabricated and measured. Parametric studies and radiation characteristics for the designed antenna were presented. The designed antenna has the characteristics of wide bandwidth and negligible dispersion over the UWB frequency band and omnidirectional characteristics in the WLAN band.

Review: Dual Band Microstrip Antennas for Wireless Applications

“…In year 2011, Sim and Cai [25] designed microstrip-fed polygon slot antenna for WLAN applications in the 2.4/5.2/5.8 GHz bands. Panda and Kshetrimayum [82] presented narrow patch placed over dielectric substrate with microstrip line feeding used for wireless communications. A compact notched CPWfed wide-slot antenna for wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMax) applications was proposed by Lin [83].…”

A compact dual‐band coupled‐microstrip‐slotline coupler with arbitrary power division ratios

“…With the development of wireless communication technologies, the requirement for dual‐band or multiband transceivers has been growing rapidly. In recent years, a lot of research efforts have been focused on dual‐band passive components, including antennas, 1 power dividers/combiners, 2,3 bandpass filters, 4 and directional couplers 5–30 …”

“…With the development of wireless communication technologies, the requirement for dual-band or multiband transceivers has been growing rapidly. In recent years, a lot of research efforts have been focused on dualband passive components, including antennas, 1 power dividers/combiners, 2,3 bandpass filters, 4 and directional couplers. For dual-band 90°couplers, much attention has been paid to branch-line (BL) structures [5][6][7][8][9][10][11][12][13][14][15][16] and edge-coupledline (ECL) structures.…”

Compact and Low-Profile UWB Antenna Based on Graphene-Assembled Films for Wearable Applications

“…The antenna had a physical size of 80 mm × 67 mm, which failed to meet the design requirements for miniaturization of wearable antennas [17]. Coplanar-waveguide (CPW) feeding is also a common method to improve the bandwidth and realize miniaturization [18][19][20][21][22][23]. Great progress has been achieved for traditional antennas to solve the problems relating to antenna gain, radiation pattern, return loss, and size miniaturization.…”