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Content Provider | IEEE Xplore Digital Library |
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Author | Bhattacharya, J. Shanmugam, N. Ramasamy, S.R. Roy, S.K. |
Copyright Year | 1999 |
Description | Author affiliation: Inst. of Radio Phys. & Electron., Calcutta Univ., India (Bhattacharya, J.) |
Abstract | Solid state microwave oscillators are becoming increasingly important in microwaves, millimeter-waves and submillimeter wave frequency ranges. Previously, traditional waveguide based oscillators using IMPATTs have been popular. The paper deals with the design, development and characterization of a microstrip IMPATT oscillator in the Ku-band. Since IMPATTs large signal behaviour usually is not well understood and the circuits are electromagnetically complex, it is difficult to characterize accurately the circuit performance in a microstrip configuration. Therefore, a simple circuit topology is adopted using a GaAs IMPATT diode with an operating frequency range of 14-17 GHz and a design center frequency at 14 GHz. The entire design is realized on a polytetrafluroethylene-5880 substrate with a dielectric constant of 2.2. All line lengths and widths are calculated using EESOF's Microwave software packages-LINECALC and TOUCHSTONE. The results show an output power of 190 mW at 12.7 GHz, with a slight modification, an oscillator frequency of 13.88 GHz is achieved. Conclusions and future scope of work are also discussed. The design presented is first step towards the development of a microstrip IMPATT oscillator. Experimental work is on for further improvements in performance. |
Starting Page | 477 |
Ending Page | 480 |
File Size | 381531 |
Page Count | 4 |
File Format | |
ISBN | 8190065203 |
DOI | 10.1109/ICEMIC.1997.669853 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1999-12-08 |
Access Restriction | Subscribed |
Rights Holder | Society of EMC Engineers |
Subject Keyword | Microstrip Microwave oscillators Frequency Solid state circuits Millimeter wave circuits Submillimeter wave circuits Electromagnetic waveguides Circuit optimization Circuit topology Gallium arsenide |
Content Type | Text |
Resource Type | Article |
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