Title:
DIODE RING CONFIGURATION FOR HARMONIC DIODE MIXERS
Document Type and Number:
WIPO Patent Application WO2005084288
Kind Code:
A3
Abstract:
A sub-harmonic mixer having at least one diode ring array used for up-conversion in a transmitter and for down-conversion in a receiver. Each diode ring array has a plurality of (e.g., four) diode rings arranged in parallel. The diode ring array may be connected in parallel or series with the signal flowing in the circuit. In a transmitter, a local oscillator (LO) generates an LO frequency signal. The sub-harmonic mixer generates a signal having twice the LO frequency using the LO frequency signal, and multiplies it to an intermediate frequency (IF) signal to generate a radio frequency (RF) signal for transmission. The subharmonic mixer may be a sub-harmonic image rejection mixer having two diode ring arrays (i.e., sub-harmonic mixers) that are coupled together through a 90<°> hybrid at an input and a 90<°> hybrid at an output. In a receiver, the sub-harmonic mixer receives an input RF signal and generates an output IF signal in a reverse process.
Inventors:
BOS THOMAS A (US)
CAMARGO EDMAR (US)
CAMARGO EDMAR (US)
Application Number:
PCT/US2005/006521
Publication Date:
November 03, 2005
Filing Date:
February 28, 2005
Export Citation:
Assignee:
EUDYNA DEVICES INC (JP)
BOS THOMAS A (US)
CAMARGO EDMAR (US)
BOS THOMAS A (US)
CAMARGO EDMAR (US)
International Classes:
H01Q11/12; H03K9/00; H04B1/04; H04B1/28; H04B1/30; H04L27/06; (IPC1-7): H04B1/04; H01Q11/12; H03K9/00; H04L27/06
Foreign References:
| US6879192B2 | 2005-04-12 | |||
| US5416449A | 1995-05-16 | |||
| US5239685A | 1993-08-24 | |||
| US5339284A | 1994-08-16 | |||
| US5379458A | 1995-01-03 | |||
| US5787126A | 1998-07-28 | |||
| US5428840A | 1995-06-27 | |||
| US5446923A | 1995-08-29 |
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