Publisher DOI: 10.23919/GEMIC.2019.8698160
Title: A Compact Low-Loss Multilayer SIW Diplexer at K/Ka-Band
Language: English
Authors: Sieganschin, Anton 
Jaschke, Thomas 
Mitto, Hans K. 
Lamann, Nadja Janinka 
Waldhelm, Jan 
Jacob, Arne 
Issue Date: 23-Apr-2019
Source: GeMiC 2019 - 2019 German Microwave Conference : 51-54 (2019-04-23)
Journal or Series Name: GeMiC 2019 - 2019 German Microwave Conference 
Abstract (english): This contribution deals with a compact substrate integrated waveguide (SIW) diplexer for terminal array antennas at K-/Ka-band. The diplexer connects the transmit (Tx) and the receive (Rx) frontend with an antenna element. It is comprised of a bifurcation and two second order bandpass filters with low insertion loss. The Rx-filter has additionally two transmission zeros in the Tx-band. The structure is implemented in multilayer printed circuit board (PCB) technology. This yields a compact design which can be integrated in an array with half-wave element spacing. The simulated diplexer performance is validated by measurements. The insertion loss in the Rx-band remains below 0.7 dB, while the Tx-/Rx-isolation exceeds 40 dB in a 1.2 GHz band at Tx.
URI: http://hdl.handle.net/11420/2722
ISBN: 978-398203970-1
Institute: Hochfrequenztechnik E-3 
Type: InProceedings (Aufsatz / Paper einer Konferenz etc.)
Funded by: German Aerospace Center (DLR) on behalf of the German Federal Ministry of Economics and Technology (BMWi) under research contract 50 YB 1707.
Project: Elektronisch schwenkbare Planarantenne für mobile Satelittenkommunikation im Flugzeug - SANTANA-Aero 
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