CMD226N3 Frequency Doubler is housed in QFN-style package.

Press Release Summary:

Covering input frequency range from 7 GHz to 11 GHz input frequency (C-,X, input ;Ku-, and K-band output), CMD226N3 Frequency Doubler is suitable for military radar, SMDS, SATCOM, and VSAT applications. Having a drive level of +15 dBm, unit offers conversion loss of 9.0 dBm at 18 GHz and Fo isolation in reference to input level of 44 dB. CMD226N3 comes with 50 Ω matched design on chip.

Original Press Release:

New MMIC Broadband Passive Frequency Doubler from 7 GHz to 11 GHz Offers Excellent Fundamental Isolation

Custom MMIC, a leading developer of performance driven monolithic microwave integrated circuits (MMICs), announces a new edition to their growing line of high performance MMIC doublers, the CMD226N3 broadband frequency doubler. The doubler covers an input frequency of 7 GHz to 11 GHz input frequency (C-,X, input ;Ku-, and K-band output). This doubler’s low conversion loss and excellent Fo isolation make it ideal for use in military radar, SMDS, SATCOM, VSAT, and LO chains for point-to-point microwave/millimeter-wave radio in cellular backhaul applications.

The GaAs MMIC CMD226N3 is a x2 passive frequency multiplier that offers broadband performance and is housed in a QFN-style package. With a drive level of +15 dBm, this frequency doubler offers 9.0 dBm of conversion loss at 18 GHz and Fo Isolation in reference to an input level of 44 dB. The 3Fo and 4Fo isolation are at least 48 dBc and 50 dBc, respectively.

Extremely temperature stable, the conversion gain varies less than 2 dB from nominal across the entire frequency band of operation, and is also very stable under varying drive conditions. The CMD226N3’s passive design exhibits excellent phase noise performance, without the need for biasing circuitry. It also incorporates a 50 ohm matched design on chip--removing the necessity to RF port match this device.

Download a full datasheet of the CMD226N3 Frequency Doubler to learn more

About Custom MMIC

Custom MMIC is a leading manufacturer of performance driven monolithic microwave integrated circuits (MMICs). Embracing their customers’ challenges, the company offers both a growing portfolio of high-performance MMIC standard products and innovative custom-design services. Their engineering team is highly experienced in a broad range of III-V processes (e.g. GaAs, GaN, InP, InGaP) and has longstanding relationships with the leading foundries. Custom MMIC specializes in RF through millimeter-wave products serving diverse markets including wireless and wired communications, satellite, radar systems, cellular infrastructure and instrumentation. The company was founded in 2006 and is based in Chelmsford, MA. For more information, visit

Company Contact:

John Greichen

Custom MMIC


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