Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Henning Tesmer"'
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 3, Pp 480-489 (2022)
This paper presents a reconfigurable dielectric image line leaky wave antenna at W-band. Reconfigurability is achieved by applying bias to anisotropic liquid crystal (LC) filled into the antenna. Instead of separating RF components and DC-bias networ
Externí odkaz:
https://doaj.org/article/f0538b992a8e46c5b5f8651eebca30b4
Autor:
Ersin Polat, Fynn Kamrath, Stipo Matic, Henning Tesmer, Alejandro Jimenez-Saez, Dongwei Wang, Holger Maune, Michael Hoft, Rolf Jakoby
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 3, Pp 490-495 (2022)
This paper presents a novel hybrid bias concept for liquid crystal (LC) filter by using simultaneously electric and magnetic bias fields. It enables continuous tuning with a simplified electrode design, decreased number of electrodes and reduced bias
Externí odkaz:
https://doaj.org/article/605505860c954ec7a62a7d6b786db60e
Autor:
Dongwei Wang, Ersin Polat, Christian Schuster, Henning Tesmer, Gustavo P. Rehder, Ariana L. C. Serrano, Leonardo G. Gomes, Philippe Ferrari, Holger Maune, Rolf Jakoby
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 1, Pp 174-184 (2022)
This paper presents a highly miniaturized tuneable microstrip line phase shifter for 5 GHz to 67 GHz. The design takes advantage of the microstrip topology by substituting the ground plane by a metallic-nanowire-filled porous alumina membrane (NaM).
Externí odkaz:
https://doaj.org/article/35338fcae7d747fdb1eb0421785cdc72
Autor:
Fynn Kamrath, Ersin Polat, Stipo Matic, Christian Schuster, Daniel Miek, Henning Tesmer, Patrick Boe, Dongwei Wang, Rolf Jakoby, Holger Maune, Michael Hoft
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 1, Pp 134-144 (2022)
This paper presents for the first time a fully electronically reconfigurable waveguide filter tunable in bandwidth and center frequency based on liquid crystal (LC) technology. A continuously reconfigurable two pole bandpass filter is designed and ch
Externí odkaz:
https://doaj.org/article/200e04fd0d6c462ba88bc7a9cc989975
Autor:
Matthias Nickel, Alejandro Jimenez-Saez, Prannoy Agrawal, Ahmed Gadallah, Andrea Malignaggi, Christian Schuster, Roland Reese, Henning Tesmer, Ersin Polat, Dongwei Wang, Peter Schumacher, Rolf Jakoby, Dietmar Kissinger, Holger Maune
Publikováno v:
IEEE Access, Vol 8, Pp 77833-77842 (2020)
In this paper, the gap waveguide technology is examined for packaging liquid crystal (LC) in tunable microwave devices. For this purpose, a line based passive phase shifter is designed and implemented in a ridge gap waveguide (RGW) topology and fille
Externí odkaz:
https://doaj.org/article/2ee47657a9884bfd8645c6c0c6ef2e87
Autor:
Roland Reese, Ersin Polat, Henning Tesmer, Jonathan Strobl, Christian Schuster, Matthias Nickel, Angel Blanco Granja, Rolf Jakoby, Holger Maune
Publikováno v:
IEEE Access, Vol 7, Pp 127032-127041 (2019)
In this work, the feasibility of microwave liquid crystal based dielectric waveguide phased shifters is investigated in a phased rod antenna array for the first time. For this, a 1×4 rod antenna array is designed including the phase shifters as well
Externí odkaz:
https://doaj.org/article/b67fc93260f04325b23dda2363fe73a3
Publikováno v:
Crystals, Vol 11, Iss 1, p 63 (2021)
In this paper we investigate the temperature dependent behavior of a liquid crystal (LC) loaded tunable dielectric image guide (DIG) phase shifter at millimeter-wave frequencies from 80 GHz to 110 GHz for future high data rate communications. The adh
Externí odkaz:
https://doaj.org/article/1fe1c5412d8348b18af6cf3db3d4c7e6
Autor:
Ersin Polat, Henning Tesmer, Roland Reese, Matthias Nickel, Dongwei Wang, Peter Schumacher, Rolf Jakoby, Holger Maune
Publikováno v:
Crystals, Vol 10, Iss 5, p 346 (2020)
This paper presents recent development of tunable microwave liquid crystal (LC) components in the lower millimeter wave (mmW) regime up to the W-band. With the utilization of increasing frequency, conventional metallic waveguide structures prove to b
Externí odkaz:
https://doaj.org/article/318188a6b7234beea55816dd3d6abaa3
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:5383-5392
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb87cc19a4b08a3785abfbbd46631d26
https://doi.org/10.1109/tap.2022.3142334
https://doi.org/10.1109/tap.2022.3142334
Publikováno v:
IEEE Microwave and Wireless Components Letters. 32:519-522
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::268a58558f59634be16b30d188d23929
https://doi.org/10.1109/lmwc.2022.3142410
https://doi.org/10.1109/lmwc.2022.3142410