dc.contributor.author | Alkaraki, S | |
dc.contributor.author | Kelly, J | |
dc.contributor.author | Borja, AL | |
dc.contributor.author | Mittra, R | |
dc.contributor.author | Wang, Y | |
dc.date.accessioned | 2021-01-08T09:39:16Z | |
dc.date.available | 2021-01-08T09:39:16Z | |
dc.date.issued | 2020-12-01 | |
dc.identifier.issn | 1531-1309 | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/69559 | |
dc.description.abstract | IEEE This letter presents a new approach for reconfiguring substrate integrated waveguide (SIW) devices. It involves allowing or prohibiting the wave propagation by using a removable wall which is built from a series of drill holes. When the wall is required, the holes are filled with gallium-based liquid metal (LM), thus forming vias. When the wall is no longer required, the holes are emptied of LM. The method has been applied to a single-pole single-throw (SPST) SIW switch as well as a single-pole double-throw (SPDT) switch. Both switches perform well over a wide frequency bandwidth, approaching one octave. The SPST switch performs well from 2.4 to 4.3 GHz. In the ON-state (i.e., wall removed), the insertion loss (IL) is ≤ 0.5 dB. In the OFF-state (i.e., wall inserted), the isolation is 30 dB. The SPDT switch operates effectively from 4.7 to 7.2 GHz. The IL, between two connected ports, is 0.7 dB. The isolation between unconnected ports is 40 dB. The proposed approach will be applicable within a wide range of different reconfigurable microwave devices. | en_US |
dc.publisher | IEEE | en_US |
dc.relation.ispartof | IEEE Microwave and Wireless Components Letters | |
dc.title | Gallium-Based Liquid Metal Substrate Integrated Waveguide Switches | en_US |
dc.type | Article | en_US |
dc.rights.holder | © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | |
dc.identifier.doi | 10.1109/LMWC.2020.3040795 | |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |
qmul.funder | Millimeter-wave Antennas and Components for Future Mobile Broadband Networks (MILLIBAN)::Engineering and Physical Sciences Research Council | en_US |