کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
446604 1443206 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hybrid connection of RF MEMS and SMT components in an impedance tuner
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Hybrid connection of RF MEMS and SMT components in an impedance tuner
چکیده انگلیسی

This paper presents a systematic construction of a model for a hybrid connected RF MEMS and SMT components in a reconfigurable impedance tuner. The double stub hybrid impedance tuner which employs a high number of MEMS switches is selected to demonstrate the feasibility of the connections. In the hybrid tuner, MEMS switches are actuated with DC bias signals, where SMT resistors de-couple RF from the DC lines. The hybrid tuner is realized in two steps, where the MEMS impedance tuner is fabricated on a glass substrate using an in-house surface micromachining process, and the SMT resistors are mounted on the glass substrate following the MEMS fabrication. The parasitics introduced by the SMT resistors and their connections in the hybrid tuner are modeled in 1–20 GHz band. The constructed model is used to simulate the hybrid impedance tuner, which is capable of matching 210210 points on the Smith Chart, covering a wide impedance range 1.5–393 ΩΩ in the real and −210 to 220 ΩΩ in the imaginary parts at 18 GHz. The hybrid impedance tuner is measured for 25 switch combinations to verify the model in which a good agreement is obtained. The comparison of the simulation and measurement results show that the constructed model is successful in terms of handling parasitics of a hybrid structure up to 20 GHz where the parasitics vitally affect the device performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 64, Issue 8, August 2010, Pages 748–756
نویسندگان
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