Results 211 to 220 of about 236,890 (260)

8 GHz high conversion gain Darlington mixer

2007 50th Midwest Symposium on Circuits and Systems, 2007
This paper describes a new Darlington AC-coupled mixer operating at 8 GHz with improved figure-of-merits. This Darlington AC-coupled mixer along with a simple AC- coupling mixer used for reference are implemented in a 0.35 mum SiGe bipolar process. The supply voltage and current consumption are 3.2 V and 28 mA.
null Jongsoo Lee, Patrick Roblin, Steven Bibyk, null Young-Gi Kim, null Chang-Woo Kim, Hyo-Dal Park   +5 more
openaire   +1 more source

A Microwave Frequency Halver with Conversion Gain

16th European Microwave Conference, 1986, 1986
A novel frequency halver circuit is presented, based on the concept of parametric division using a Schottky diode. This technique utilizes the gate to source Schottky diodes of two FETs in a half frequency, resonant loop configuration. Measurements of such a frequency divider, for an input signal in X-band, show conversion gain with good suppression of
S.P. Stapleton, M.G. Stubbs
openaire   +1 more source

RF gain control in direct conversion receivers

2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353), 2003
This paper presents a study of LO self-mixing and RF gain control issues in direct conversion receivers. In cellular systems, that use continuous time frequency duplexing, these can constitute serious problems. The presented topic is of special importance when digitally programmable gain is implemented at the RF frequencies before the downconversion ...
J. Ryynanen, K. Kivekas, J. Jussila, A. Parssinen, K. Halonen   +4 more
openaire   +1 more source

High conversion gain broadband frequency doubler design

2010 International Conference on Microwave and Millimeter Wave Technology, 2010
This paper focuses on the design of frequency doublers operating in the RF and microwave frequency ranges. To reject the fundamental and third harmonic signal over a broadband frequency range, an active balun was employed in the broadband frequency doubler which has resulted in fundamental signal and third harmonics signal rejection better than 12 dB ...
Wen Tang, Song Tang, Qiuyang He, Zhen-hai Shao   +3 more
openaire   +1 more source

Conversion Gain Measurement of an LMDS Transmitter

49th ARFTG Conference Digest, 1997
Microwave transmitters are essential elements in future LMDS systems. Conversion gain of an LMDS transmitter is an important parameter which establishes basic functionality and system performance. This paper presents a real-time conversion gain measurement technique utilizing swept scalar analysis and compares the results with a traditional discrete ...
Lowell R. Hoover, Kendall W. Burkhart
openaire   +1 more source

Conversion gain in a Josephson effect mixer

Applied Physics Letters, 1974
The measured performance of Nb–Nb point contact Josephson junctions used as 36-GHz microwave mixers is in good agreement with the predictions of the resistively shunted junction model. Conversion efficiencies greater than unity are attained, with mixer noise temperatures comparable with the best competing devices.
Y. Taur, J. H. Claassen, P. L. Richards
openaire   +1 more source

Reconfigurable broadband mixer with variable conversion gain

2011 IEEE MTT-S International Microwave Symposium, 2011
A 2–10 GHz Gilbert-type mixer is reported in which the gate widths of the transistors in the RF stage are reconfigurable. The change in the total gate-width of the RF devices ultimately results in a variable conversion gain for the mixer. Measurements show that the conversion gain can vary from a maximum of 24 dB to a minimum of 9 dB.
Min Wang, Carlos E. Saavedra
openaire   +1 more source

Microwave Parametric Frequency Dividers With Conversion Gain

IEEE Transactions on Microwave Theory and Techniques, 2007
A novel active parametric frequency divider configuration using coupled microstrip transmission lines and two balanced pseudomorphic HEMTs (pHEMTs) is presented. The analysis of the divide-by-2 circuit presented applies the principles of subharmonic generation using a nonlinear reactance to an active semiconductor device such as a pHEMT.
Z. Heshmati, I.C. Hunter, R.D. Pollard
openaire   +1 more source

The psychological gains and losses of religious conversion

British Journal of Medical Psychology, 1977
A presentation of case material demonstrating productive identity formation and conflict resolution resulting from religious conversion with at the same time significant repression that so affected personal relatedness as to eventually lead to breakdown of adjustment.
openaire   +2 more sources

Insights Gained from Conversations with Labor Market Decision Makers [PDF]

SSRN Electronic Journal, 2007
I describe insights into wage dynamics and downward wage rigidity obtained from more than two hundred interviews with businesspeople, labor leaders, and various labor market intermediaries and made in the early 1990s in the Northeast of the United States.
openaire   +2 more sources