Journal
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
Volume 83, Issue -, Pages 470-478Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.aeue.2017.10.035
Keywords
UWB antenna; Notched band; Wireless communication frequencies
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A Y-shaped ultra-wideband (UWB) monopole antenna containing modified ground plane with five stop bands is presented. An inverted U-shaped slot and a C-shaped slot are placed on Y-shaped radiating patch to achieve two notched bands while three pairs of C-shaped slots are placed at different positions on modified ground plane to achieve three more notched bands. The proposed antenna is designed, fabricated and experimentally tested. The designed Y-shaped antenna has overall dimensions of 36 x 38 x 1.6 mm(3) (0.34 lambda(l) x 0.36 lambda(l) x 0.016 lambda(l)) and has impedance bandwidth 2.86-13.3 GHz at vertical bar S-11 vertical bar < -10 dB level. Measured band notches are achieved at 3.75/ 5.43/7.87/8.62/9.87 GHz centre notched frequencies to eliminate worldwide interoperability for microwave access (WiMAX) band (3.45-4.0 GHz), wireless local area network (WLAN) band (5.15-5.90 GHz), X-band for satellite communication (6.77-8.00 GHz), ITU-8 band (8.3-9.1 GHz), and radio navigation (RN) band (9.3-10.6 GHz), respectively. Variation of slot parameter on individual band notch is also investigated. Omnidirectional radiation pattern for XZ-plane and dipole-like radiation pattern for YZ-plane are observed. Stable gain, variation of phase response in linear fashion and group delay < 1.3 ns for whole ultra-wideband except at band notches is achieved.
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