In this paper a technique is described to extend the impedance bandwidth of patch antennas without compromising their size. This is accomplished by embedding capacitive slits in the rectangular patch with a truncated ground-plane, and exciting the antenna through a meandered strip-line feed. The proposed antenna was fabricated on standard FR-4 substrate with permittivity of 4.6, thickness of 0.8 mm and loss-tangent of 0.001. The performance of the prototype antenna was verified through measurements. Characteristics of the antenna include an impedance bandwidth of 5.25 GHz (800 MHz–6.05 GHz) for VSWR <2 corresponding to a fractional bandwidth of 153.28%, peak gain of 5.35 dBi, radiation efficiency of 84.12% at 4.45 GHz, and low cross-polarization. These attributes make the antenna applicable for stable and reliable multiband applications in the UHF, L, S and major part of C-bands. The antenna offers advantages of low cost, low profile, ease of manufacturing, durability and conformability.

Alibakhshi-Kenari, M., Naser-Moghadasi, M., Sadeghzadeh, R.a., Virdee, B.s., & Limiti, E. (2016). Bandwidth extension of planar antennas using embedded slits for reliable multiband RF communications. AEÜ. INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, 70(7), 910-919 [10.1016/j.aeue.2016.04.003].

Bandwidth extension of planar antennas using embedded slits for reliable multiband RF communications

LIMITI, ERNESTO
2016-07

Abstract

In this paper a technique is described to extend the impedance bandwidth of patch antennas without compromising their size. This is accomplished by embedding capacitive slits in the rectangular patch with a truncated ground-plane, and exciting the antenna through a meandered strip-line feed. The proposed antenna was fabricated on standard FR-4 substrate with permittivity of 4.6, thickness of 0.8 mm and loss-tangent of 0.001. The performance of the prototype antenna was verified through measurements. Characteristics of the antenna include an impedance bandwidth of 5.25 GHz (800 MHz–6.05 GHz) for VSWR <2 corresponding to a fractional bandwidth of 153.28%, peak gain of 5.35 dBi, radiation efficiency of 84.12% at 4.45 GHz, and low cross-polarization. These attributes make the antenna applicable for stable and reliable multiband applications in the UHF, L, S and major part of C-bands. The antenna offers advantages of low cost, low profile, ease of manufacturing, durability and conformability.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-INF/01 - Elettronica
eng
Con Impact Factor ISI
Planar slit antenna; Meandered strip-line feed; Wideband antenna; Multiband antenna
Alibakhshi-Kenari, M., Naser-Moghadasi, M., Sadeghzadeh, R.a., Virdee, B.s., & Limiti, E. (2016). Bandwidth extension of planar antennas using embedded slits for reliable multiband RF communications. AEÜ. INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, 70(7), 910-919 [10.1016/j.aeue.2016.04.003].
Alibakhshi-Kenari, M; Naser-Moghadasi, M; Sadeghzadeh, Ra; Virdee, Bs; Limiti, E
Articolo su rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/160116
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