60GHz Rotman lens and new compact low loss delay line using LTCC technology

• Published in: 2009 IEEE Radio and Wireless Symposium pp. 663 - 666
• Main Authors: In Sang Song, Jaeheung Kim, Dong Yun Jung, Ki Chan Eun, Jae Jin Lee, Seong Jun Cho, Hong Yi Kim, Jai-Hoon Bang, Inn-Yeal Oh, Chul Soon Park
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.01.2009
• Subjects: Antennas and propagation; beam-forming; Delay lines; Insertion loss; Lenses; Millimeter wave communication; Millimeter wave technology; Optical design; phase shifter; Phase shifters; Radio frequency; Rotman lens; Temperature
• ISBN: 9781424426980; 1424426987
• ISSN: 2164-2958
• DOI: 10.1109/RWS.2009.4957439

In this work, the first mu-strip 60 GHz Rotman lens and new compact low loss strip delay line using low temperature co-fired ceramic(LTCC) are proposed. The lens has 3 steering capability for +26deg, -26deg, 0.1deg angle, - 0.86 dB of side lobe level (SLL), and 28deg of half power beam width (HPBW). The Rotman lens is designed in mu-strip structure for integration capability with the system on package (SoP). In order to replace bulky and lossy meander line of the Rotman lens, new compact low loss delay line is developed and verified. It shows remarkable performance; it has smaller insertion loss. Furthermore, It shows 78% of length reduction than meander line. Also, owing to its simple and symmetrical structure, the delay line is reciprocal and analogous.