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Mixers

A complete line of microwave mixers is designed for use in transmitter and receiver frequency translation applications. Standard designs covering the 1 to 20 GHz frequency range are available in drop-in, open substrate and connectorized packages. System performance will be predicated upon selection of the appropriate mixer type. Parameters such as LO drive level, IF frequency, isolation, and spurious levels will determine optimum mixer selection. Our current mixer offering includes double balanced, triple balanced and I/Q modulator.

Double balanced mixers are designed with a single quad diode on a soft substrate and offer optimal VSWR as well as cancellation of even harmonics generated by the mixing of the RF LO signals. These mixers offer DC coupled IF ports, are good for general utility mixing requirements requiring single stage downconversion to baseband, and can be utilized for phase detector and bi-phase modulator requirements. Typical applications are in narrow or broadband receivers with an IF in the DC to 1000 MHz range. Triple balanced mixers (or double-double balanced mixers) are designed with dual quad diodes on a soft substrate and offer a higher input compression point performance with a broad frequency range. These mixers require a higher LO drive level, however, they are well suited for higher dynamic range systems requiring multiple up and down conversion stages. The IF output is not DC coupled. Custom options are available.

Double Balanced Mixers

Triple Balanced Mixers

Quadrature IF Mixers

Typical Specification is:
RF/LO Frequency Range	2 - 4 GHz
IF Frequency Range	DC - 100 MHz
Conversion Loss	11 dB
VSWR, RF and LO ports	2:1 typical
Isolation, LO to RF and LO to IF	20 dB minimum
LO drive	13 ± 1 dB
Input Two-Tone Third Order Intercept Point	13 dBm
Amplitude Balance	± 0.5 dB
Phase Balance	± 2 °
Operating Temperature Range	-54 to +95 °C

Image Reject Mixer

Single Sideband Modulator

I/Q Modulator

Sage Labs mixers are available in a variety of package configurations, some typical outline configurations are shown below. NOTE: All dimensions are typical. For maximum dimensions and tolerances contact Sage for actual outline drawings.