Reconfigurable Polarization Slot Antenna
- Reconfigurable Polarization Slot Antenna Mounts
- Polarization Reconfigurable Eccentric Annular Ring Slot Antenna Design
- Reconfigurable Polarization Slot Antenna Tuner
- Selvam, YogeshwariPanneer, et al. 'Novel frequency-and pattern-reconfigurable rhombic patch antenna with switchable polarization.' IEEE Antennas and Wireless Propagation Letter, vol.16, pp.1639-1642,2017. Rasool, Maryam, et al. 'A compact open complementary split ring resonator inspired triband reconfigurable coplanar waveguide fed antenna.'
- For maximum utility, the use of a reconfigurable polarization antenna should not preclude the use of any of the frequencies available to the given radio and so should be as wide bandwidth as appropriate to the radio (12% in the 802.11a U.S. Another key feature for a reconfigurable polarization antenna is cross-polarization rejection.
- In this communication, a microfluidically frequency- and polarization-reconfigurable slot antenna using liquid metal (LM) is proposed. The polydimethylsiloxane (PDMS) structure with narrow-banded microchannels is loaded on the printed circuit board (PCB) of a square slot antenna, providing condition for reconfiguration.
- The slot antenna was invented in 1938 by Alan Blumlein, while working for EMI. He invented it in order to produce a practical type of antenna for VHF television broadcasting that would have horizontal polarization, an omnidirectional horizontal radiation pattern and a narrow vertical radiation pattern.
A Polarization Reconfigurable Slot Antenna with a Novel Switchable Feeding Network
Abstract
A polarization reconfigurable slot antenna is proposed in this paper. The antenna consists of a microstrip line-to-slotline transition structure, two radiation slots and a switchable feeding network. The feeding network is a gradually changed ring slot with six switching diodes on it. By controlling the diodes states, the antenna can generate y-direction polarization, z-direction polarization, left-hand circular polarization and right-hand circular polarization. Detailed design considerations of the proposed antenna, simulated and measured results are presented and discussed. Measured results agree well with simulated. The results proved that the antenna can realize polarization reconfiguration effectively at 5 GHz.
9 Matthias,K.Fries,Mischa Grani And Rudiger Vahdieck, A Reconfigurable Slot Antenna with Switchable Polarization, IEEE Microwave and Wireless Components Letters, 13(11) Nov 2003. 10 Y.L.Sng, Reconfigurable Patch Antenna For Polarization Diversity, IEEE Transactions on Antenna and Propagation, 56(9),Sept 2008.
- slot antenna;
- polarization;
- reconfigurable;
- PIN diodes
Source
Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP)>402 - 404
Abstract
A polarization-reconfigurable slot antenna, for WLAN applications, is presented in this paper. The antenna incorporates a reconfigurable Wilkinson power divider-based feed network, which couples electromagnetic energy to a decagonal slot in the ground plane. The approach, presented herein, is based on electronically reconfiguring the phase difference, between the antenna's feeding ports, to achieve polarization diversity while the antenna is still operable over the desired frequency band. The proposed antenna is designed and simulated using Ansoft HFSS, a Finite-Element-Method based EM solver. The computed return loss, for each case, is better than 10 dB over the 2.4-2.484 GHz frequency range. A prototype of the designed antenna is fabricated and measured. An acceptable analogy between measured and simulated S11 plots is witnessed. For each switching condition, the radiation pattern, axial-ratio and peak gain of the antenna are included herein.
Identifiers
| book ISBN : | 978-1-4577-0250-1 |
| book e-ISBN : | 978-88-8202-074-3 , 978-88-8202-074-3 |
Authors
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Ramadan, A.
- ECE Dept., American Univ. of Beirut, Beirut, Lebanon
Al-Husseini, M.
- ECE Dept., American Univ. of Beirut, Beirut, Lebanon
Kabalan, K.Y.
- ECE Dept., American Univ. of Beirut, Beirut, Lebanon
El-Hajj, A.
- ECE Dept., American Univ. of Beirut, Beirut, Lebanon
Keywords
wireless LANantenna feedsantenna radiation patternselectromagnetic wave polarisationfinite element analysispower dividersslot antennasfrequency 2.4 GHz to 2.484 GHzpolarization reconfigurable slot antennaWLAN applicationreconfigurable Wilkinson power divider-based feed networkelectromagnetic energydecagonal slotground planephase differenceantenna feeding portpolarization diversityfrequency bandAnsoft HFSSfinite-element-methodEM solverreturn lossantenna designswitching conditionradiation patternaxial-ratiopeak gainDirective antennasMicrostrip antennasSwitches
wireless LANantenna feedsantenna radiation patternselectromagnetic wave polarisationfinite element analysispower dividersslot antennasfrequency 2.4 GHz to 2.484 GHzpolarization reconfigurable slot antennaWLAN applicationreconfigurable Wilkinson power divider-based feed networkelectromagnetic energydecagonal slotground planephase differenceantenna feeding portpolarization diversityfrequency bandAnsoft HFSSfinite-element-methodEM solverreturn lossantenna designswitching conditionradiation patternaxial-ratiopeak gainDirective antennasMicrostrip antennasSwitches