Design of a Broadband HEMT Mixer for UWB Applications
سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 586
فایل این مقاله در 6 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ITCC01_088
تاریخ نمایه سازی: 9 فروردین 1395
چکیده مقاله:
This paper presents the design of a novel distributed HEMT mixer for ultrawide-band (UWB) receivers. Artificial transmission lines are incorporated in the distributed mixer to absorb the parasitic capacitances. With a local oscillator power of 12 dBm, and RF power of -20 dBm, the proposed mixer has a Conversion Gain of 0 ~ 4 dB(without IF signal amplification), LO-to-RF isolation better than 32 dB and 130 mW DC power consumption. The designed mixer is capable of covering the RF and LO frequencies over a wide range of frequencies from 5-25 GHz. Mixer operation is demonstrated both for downconversion to fixed IF and for broadband conversion using fixed LO frequencies. This mixer utilized a new distributed topology with single-gate HEMTs and achieved a vary broadband performance comparable to the cascode or dual-gate distributed mixers. The topology of this mixer is suitable for monolithic implementation.
کلیدواژه ها:
نویسندگان
Ehsan Ehsaeyan
Sirjan University of Technology