Steerable Dielectric Resonator Phased-Array Antenna Based on Inkjet-Printed Tunable Phase Shifter With BST Metal-Insulator-Metal Varactors
- 15 September 2015
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Antennas and Wireless Propagation Letters
- Vol. 15 (15361225), 877-880
- https://doi.org/10.1109/lawp.2015.2478959
Abstract
This letter presents a steerable phased-array antenna at C/X-band. The phase shifters used in the design, are implementing inkjet-printed barium strontium titanate (BST) thick-films. This method enables low-voltage tuning and low fabrication cost. The phase shifter is tuned by integrated metal-insulator-metal varactors, whose electrodes are fabricated by photolithography and inkjet-printed dielectric layer. A tunability of 46% at 8 GHz is achieved by applying 50 V across a 1.2- μm-thick BST film. The 11-unit-cells loaded-line tunable phase shifter achieves a figure of merit above 40°/dB from 7 to 8.5 GHz. Dielectric resonator antenna, fabricated from bulk-glass ceramic, has been implemented as radiating element with a stacked architecture for wide bandwidth and high gain. A beam steering of ±30° has been measured with a 1 ×4-element phased array in the anechoic chamber.Keywords
This publication has 6 references indexed in Scilit:
- Fully printed tunable phase shifter for L/S-band phased array applicationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2014
- Dielectric resonator antenna phased array with liquid crystal based phase shiftersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2014
- Preparation of Integrated Passive Microwave Devices Through Inkjet PrintingAdditional Conferences (Device Packaging, Hitec, Hiten, & Cicmt), 2013
- Effects of ZnO-B2O3Addition on the Microstructure and Microwave Properties of Low-Temperature Sintered Barium Strontium Titanate (BST) Thick FilmsInternational Journal of Applied Ceramic Technology, 2013
- Rheological Control of the Coffee Stain Effect for Inkjet Printing of CeramicsJournal of the American Ceramic Society, 2013
- Inkjet Printing of Polymers: State of the Art and Future DevelopmentsAdvanced Materials, 2004