Band Pass Filter Chip with User Selectable Passband Frequency
July 10, 2012 Press Release
-- Single Chip Replacement for Mechanically Tuned Designs
Chelmsford, MA, 7/10/2012 – Hittite
Microwave Corporation, the world class supplier of complete MMIC based solutions for communication & military
markets, has introduced the HMC897
, a new band pass tunable filter chip which is ideal for pre-selection in advanced communications systems,
military radar, EW/ECM, SATCOM, space, industrial and medical systems. Tunable over a 9 to 19 GHz frequency range,
this new, ultra-compact, varactor-tuned MMIC filter is inherently stable and its small physical size and
insensitivity to environmental conditions make it a superior alternative to competing resonant cavity tuned
filters and large switched filter banks.
center frequency of the
HMC897 band pass filter chip is adjustable from 9 GHz to 19 GHz by applying an analog tune voltage between 0
and 14V with a tuning speed of 200 ns. The
HMC897 exhibits excellent
microphonic immunity due to the monolithic design, and provides a dynamically adjustable solution which makes it
highly beneficial for use in advanced communications applications. The
HMC897 also provides a 3 dB
filter bandwidth of approximately 18%, while the 20 dB filter bandwidth is approximately 35%. Return loss is
typically better than 10 dB across the operating frequency and wideband rejection is at least 30 dB out to 40 GHz.
Residual phase noise is as low as -160 dBc/Hz at 100 KHz offset. For applications which require a surface mount
compatible solution, this same filter is available in a RoHS compliant 4 x 4 mm QFN SMT package as the
Die samples, SMT product samples and evaluation PC boards for all SMT packaged products are available from
stock and can be ordered via the company's e-commerce site or via direct purchase order. Released data sheets
are available on-line at www.hittite.com.
Hittite Microwave Corporation is an innovative designer and manufacturer of high performance
integrated circuits, or ICs, modules, subsystems and instrumentation for technically demanding digital, RF,
microwave and millimeterwave applications covering DC to 110 GHz. The Company's standard and custom products apply
analog, digital and mixed-signal semiconductor technologies, which are used in a wide variety of wireless / wired
communication and sensor applications for Automotive, Broadband, Cellular Infrastructure, Fiber Optics &
Networking, Microwave & Millimeterwave Communications, Military, Test & Measurement, and Space markets. The
Company is headquartered in Chelmsford, Massachusetts.
Mararketing Communications Manager
Hittite Microwave Corporation
2 Elizabeth Dr.
Chelmsford, MA 01824
978-250-3343, ext. 1117
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