Ku/Ka band diplexer based on thin-film technology for small ground-segment user terminals. Issue 3 (11th April 2022)

• Record Type: Journal Article
• Authors: Moscato, Stefano; Cannone, Giandomenico; Oldoni, Matteo; Tiradossi, Davide; Pelliccia, Luca; Jankovic, Petar; De Paolis, Fabrizio
• Is Part Of: International journal of microwave and wireless technologies. Volume 14:Issue 3(2022)
• Page Start: 345
• Page End: 350
• Publication Date: 2022-04-11
• Subjects: Microwave filter -- planar diplexer -- satellite communication -- substrate integrated waveguide; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078721000908
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract: This paper describes the outcome of the "Small user TErminal multi band DIplexer" project where the goal is the validation of novel SMD-compliant planar diplexer. The real application scenario concerns an integrated multi-band radio terminal for ground-segment satellite links. The advantageous and novel approach involves the simultaneous use of three different well-established concepts: a microstrip low-pass filter, a substrate integrated waveguide high-pass filter, and the thin-film technology as manufacturing process. The proposed topology applied to a planar alumina-based design guarantees a 15 × 11.1 mm 2 footprint and the best integration with surface mountable soldering process over standard PCB technology. Achieved performance and resilience to environmental toughness are suitable for consumer-oriented satellite links or man-pack applications. The designed component targets the Ku 10.7–12.75 (RX) and Ka 27.5–30 (TX) GHz bands but the layout can be easily tuned across the spectrum. The described solution has been manufactured and validated. Thermal cycling and mechanical tests have been carried out to prove the high technology readiness level of the proposed device.