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Home > Assemblies > Multipliers > Frequency Multipliers
Frequency Multipliers

Schottky diode Frequency Multipliers are lowest cost and require the least input power (+10 dBm). Output noise is at room temperature (KTBW). The resulting current waveforms, however, have a high duty cycle (ie, square wave=50%) and therefore, higher multiplier harmonics above the fifth decay quickly.

Step-recovery diodes have impulsive waveforms with comb-like output spectrums. The Frequency Multiplier input circuit is more complex requiring a compromise between bandwidth and efficient coupling to the low diode series resistance. The required input power is a function of the SRD capacitance and quickly rises with frequency (+20 dBm typical at 1 GHz).

The hyper abrupt varactor diode (indistinguishable at high frequencies from the SRD) yields the higher output powers and efficiency, provided that unwanted sidebands are reactively terminated. MITEQ has successfully made efficient frequency doublers and prescalers (halfers) at 10 and 20 GHz.

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New Multiplier Products
MAX Series Frequency Doubler
MAX2M0714N01U photo Model MAX2M0714N01U produces an output of +23 dBm from 13,500 to 14,500 MHz with an input harmonic rejection of +/-20 dBc typical. This doubler requires an input power of 10 dBm typical, +15 VDC at 350 mA and 15 VDC at 10 mA. It is supplied with type "K" female connectors. The MAX2M0714N01U measures 0.90" x 0.69" x 0.23" without connectors. (TechnicalInfo)
SYS Series Frequency Doubler
SYS2X1428N01U photo Model SYS2X1428N01U produces a doubled output of +29 dBm from 27,500 to 28,500 MHz with an input harmonic rejection of +/-20 dBc typical. This doubler requires an input level of 10 dBm typical, +15 VDC at 740 mA and +/-15 VDC at 10 mA. It is supplied with type "K" female connectors. Model SYS2X1428N01U measures 1.29" x 1.20" x 0.27" without connectors. (TechnicalInfo)

More About Frequency Multipliers

Frequency Multipliers


Custom Frequency Multipliers

MITEQ maintains dedicated engineering resources to modify our standard designs in support of custom-generated specifications that are typically required in stringent system applications. These critical requirements often require high spectral purity. MITEQ can obtain high levels of fundamental and spurious signal suppression as required in many frequency source applications by employing special filter technologies.

In addition to custom-filter designs, MITEQ also has advanced amplifier technologies which, when combined with balanced multiplier designs, offer high performance active multipliers especially in the areas of shaped frequency response and desired output levels.

Please contact Component Sales with any special requirements you may have:
Tel: 631-436-7400
Fax: 631-436-7430

All multiplier products are backed by MITEQ's 3-Year Warranty and most are available as RoHs Compliant components.


Frequency Multipliers from MITEQ Inc.

Frequency Multipliers

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