Low-insertion loss phase shifter for millimeter-wave phased array antennas. Issue 1 (16th October 2014)

• Record Type: Journal Article
• Authors: Abdellatif, Ahmed Shehata; Taeb, Aidin; Ranjkesh, Nazy; Gigoyan, Suren; Nenasheva, Elizaveta; Safavi-Naeini, Safieddin
• Is Part Of: International journal of microwave and wireless technologies. Volume 8:Issue 1(2016)
• Page Start: 33
• Page End: 39
• Publication Date: 2014-10-16
• Subjects: Passive Components and Circuits, -- New and Emerging Technologies and Materials; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078714001299
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract : This paper proposes a compact, low-loss, and low-cost phase shifter for millimeter-wave/sub-THz applications. The basic idea is to perturb the propagation constant of a high resistivity silicon image guide by high-dielectric constant barium lanthanide tetratitanates (BLT) ceramic loading. Three different BLT ceramic samples have been tested. The measured maximum phase-shift variation reaches 150° at 100 GHz with an average insertion loss of 2.85 dB and an insertion loss variation <0.7 dB for a sample of a 5-mm length. The proposed phase shifter has a bandwidth from 95 to 105 GHz. A low-cost fabrication technology has been developed and used to realize this phase shifter.