Title :
Air-Cavity Transmission Lines on Anodized Aluminum for High-Performance RF Modules
Author :
Yook, Jong-Min ; Kim, Kyoung-Min ; Kwon, Young-Se
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
In this study, we form air-cavity transmission lines on anodized aluminum substrates. The fabricated transmission lines are microstrip, grounded CPW, and microshield structures. Thick anodized alumina is used as the post of the suspending structures, and it is realized very easily using selective chemical wet-etching. The insertion losses of the fabricated transmission lines on the anodized aluminum are within a range of 0.2-0.26 dB/mm, and they improve greatly after realizing air-cavity structures to 0.043-0.076 dB/mm at 40 GHz.
Keywords :
coplanar waveguides; etching; modules; transmission lines; Al; air-cavity transmission lines; anodized aluminum substrates; coplanar waveguides; frequency 40 GHz; grounded CPW; high-performance RF modules; insertion losses; microshield structures; millimeter wave package; selective chemical wet-etching; thick anodized alumina; Air-cavity; high power package; microshield line; millimeter wave package; suspending; transmission line;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2009.2029736
