Novel Orthomode Transducer Scalable to Terahertz Frequencies
Paper i proceeding, 2024

We present the design of a novel orthomode transducer, OMT, suitable for scaling up to Terahertz frequencies. The current design aims for the frequency band 270-380 GHz. The OMT combines waveguide components made with conventional milling with substrate-based parts fabricated using microfabrication techniques. This allows critical dimensions of the OMT conventionally to be mechanically machined parts being replaced by photolithographically defined and microfabricated structures. The paper provides details on the OMT layout, simulations, fabrication and tests. The two fabricated and tested prototype OMTs show similar performance providing better than 30 dB cross-pol suppression. The OMTs also demonstrated broadband performance with an operational band of 260-385 GHz corresponding to a 38,8% fractional bandwidth. With the microfabricated polarization splitting junction and relatively simple waveguide circuitry, the OMT has very good potential to be scaled up to higher frequencies, probably up to 1.5 THz.

Författare

Nils Patriksson

Student vid Chalmers

Denis Meledin

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Igor Lapkin

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Cristian Daniel López

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Alexei Pavolotski

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Leif Helldner

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Sven-Erik Ferm

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Vincent Desmaris

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Victor Belitsky

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

2024 4th URSI Atlantic Radio Science Meeting, AT-RASC 2024


9789463968102 (ISBN)

4th URSI Atlantic Radio Science Meeting, AT-RASC 2024
Meloneras, Spain,

Ämneskategorier

Telekommunikation

Astronomi, astrofysik och kosmologi

Annan elektroteknik och elektronik

Den kondenserade materiens fysik

DOI

10.46620/URSIATRASC24/IPKB8830

ISBN

[9789463968102]

Mer information

Senast uppdaterat

2024-09-26