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A Dual-Band SiGe HBT Frequency-Tunable and Phase-Shifting Differential Amplifier Employing Varactor-Loaded, Stacked LC Resonators
Joint Authors
Sakamoto, Kazuyoshi
Itoh, Yasushi
Source
International Journal of Microwave Science and Technology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-21
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
A dual-band SiGe HBT frequency-tunable and phase-shifting differential amplifier has been developed for the future active phased array antennas with a multiband, multibeam, and multitarget tracking operation.
The amplifier uses varactor-loaded, stacked LC resonators in the design of the output circuit in order to provide frequency-tunable and phase-shifting capabilities for dual frequencies.
By utilizing the varactor-loaded LC resonator, which has a variable resonant frequency and a large insertion phase variation, frequency-tunable and phase-shifting performances become available.
Moreover, by using the stacked configuration, the frequency and insertion phase can be varied independently for dual frequencies.
A dual-band SiGe HBT differential amplifier has achieved a lower-frequency tuning range of 0.56 to 0.7 GHz for a higher fixed frequency of 0.97 GHz as well as a higher-frequency tuning range of 0.92 to 1.01 GHz for a lower fixed frequency of 0.63 GHz.
A lower-frequency phase variation of 99° and a higher-frequency phase variation of 90.3° have been accomplished at 0.63 and 0.97 GHz, respectively.
This is the first report on the dual-band differential amplifier with frequency-tunable and phase-shifting capabilities.
American Psychological Association (APA)
Sakamoto, Kazuyoshi& Itoh, Yasushi. 2012. A Dual-Band SiGe HBT Frequency-Tunable and Phase-Shifting Differential Amplifier Employing Varactor-Loaded, Stacked LC Resonators. International Journal of Microwave Science and Technology،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-450432
Modern Language Association (MLA)
Sakamoto, Kazuyoshi& Itoh, Yasushi. A Dual-Band SiGe HBT Frequency-Tunable and Phase-Shifting Differential Amplifier Employing Varactor-Loaded, Stacked LC Resonators. International Journal of Microwave Science and Technology No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-450432
American Medical Association (AMA)
Sakamoto, Kazuyoshi& Itoh, Yasushi. A Dual-Band SiGe HBT Frequency-Tunable and Phase-Shifting Differential Amplifier Employing Varactor-Loaded, Stacked LC Resonators. International Journal of Microwave Science and Technology. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-450432
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450432