Low-Profile UWB 2-Port Antenna With High Isolation

Low-Profile UWB 2-Port Antenna With High Isolation

We present a collocated pair of antennas, operating from 700 to 2700 MHz. The antenna structure consists of two wideband dipole elements placed at height 0.093 λ low above a 0.47 λ low ×0.54 λ low ground plane. The dipoles achieve an isolation of about 40 dB using orthogonal polarization arrangement...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2014, Vol.13, p.55-58
Hauptverfasser: Yetisir, Ersin, Chi-Chih Chen, Volakis, John L.
Format: Artikel
Sprache:eng
Schlagworte:
Antennas
Baluns
Circuit boards
Couplings
Dipole antennas
Dipoles
Ground plane
High isolation
Impedance matching
low-profile antenna pair
MIMO
multiple-input-multiple-output (MIMO)
Noise levels
polarization diversity
Printed circuits
Receiving antennas
simultaneous transmit/receive
Transmitting antennas
Ultrawideband
ultrawideband (UWB)
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Beschreibung
Zusammenfassung:We present a collocated pair of antennas, operating from 700 to 2700 MHz. The antenna structure consists of two wideband dipole elements placed at height 0.093 λ low above a 0.47 λ low ×0.54 λ low ground plane. The dipoles achieve an isolation of about 40 dB using orthogonal polarization arrangement with resistive sheets (R-card) placed between the antenna pair. The configuration is suitable for sidewall mounting and is easy to fabricate with integrated baluns on a single two-sided printed circuit board (PCB). This antenna pair should be useful for multiple-input-multiple-output (MIMO) systems and simultaneous transmit/receive applications in several common wireless communication bands.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2013.2296045