A 2.7-V QUASI-MICROWAVE SI-BIPOLAR QUADRATURE MODULATOR WITHOUT TUNING

Authors
TSUKAHARA T NAKAGAWA T MURAGUCHI M
Citation
T. Tsukahara et al., A 2.7-V QUASI-MICROWAVE SI-BIPOLAR QUADRATURE MODULATOR WITHOUT TUNING, IEICE transactions on fundamentals of electronics, communications and computer science, E80A(2), 1997, pp. 349-352
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic","Computer Science Hardware & Architecture","Computer Science Information Systems
Journal title
IEICE transactions on fundamentals of electronics, communications and computer science → ACNP
ISSN journal
09168508
Volume
E80A
Issue
2
Year of publication
1997
Pages
349 - 352
Database
ISI
SICI code
0916-8508(1997)E80A:2<349:A2QSQM>2.0.ZU;2-R
Abstract
A 2.7-V Si-bipolar quadrature modulator with a 90 phase shifter consis ting of a frequency doubler and a master-slave flip-flop is described. The modulator operates over a wide bandwidth (0.95 to 1.88 GHz) witho ut any tuning or adjustments. It is implemented using 20-GHz Si-bipola r technology and dissipates 97 mW at 2.7 V. An image ratio of less tha n -40 dBc is obtained between 1.1 and 1.8 GHz. Moreover, third-order h armonic products are less than -40 dBc and carrier leakage is less tha n -30 dBc.