Hittite has introduced the HMC897, a new bandpass tuneable filter chip which is ideal for pre-selection in advanced communications systems, military radar, EW/ECM, SATCOM, space, industrial and medical systems.
Tuneable over a 9 to 19 GHz frequency range, the compact, varactor-tuned MMIC filter is inherently stable and its small physical size and insensitivity to environmental conditions make it a viable alternative to competing resonant cavity tuned filters and large switched filter banks.
The centre frequency of the IC is adjustable by applying an analog tuning voltage between 0 and 14 V with a tuning speed of 200 ns. The device exhibits excellent microphonic immunity due to its 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 HMC897LP4E.
X-band radar RF Design
Editor's Choice Telecoms, Datacoms, Wireless, IoT
X-band radar systems, particularly those leveraging beamforming ICs (BFICs), advanced gallium nitride (GaN) and gallium arsenide (GaAs) components, are leading the way in providing the high-performance radar capabilities required for modern defence and surveillance.
Read more...A new era in modular I/O solutions Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...GNSS antenna redefining what’s possible RF Design
Telecoms, Datacoms, Wireless, IoT
u-blox has achieved what was once thought impossible with the launch of the DAN-F10N, the industry’s smallest and most reliable L1, L5 dual-band GNSS antenna module.
Read more...High voltage instrument op-amp iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...u-blox expands NORA-B2 BLE modules RF Design
Telecoms, Datacoms, Wireless, IoT
The new nRF54L chipset-based wireless modules reduce current consumption and double processing capacity, catering to diverse mass market segments.
Read more...New GNSS passive patch antenna RF Design
Telecoms, Datacoms, Wireless, IoT
The HP24510A from Taoglas is a stacked patch GNSS passive antenna that operates from 1215 to 1610 MHz covering the L1/L2 GNSS spectrum.
Read more...High-speed SAR ADC simplifies design Altron Arrow
Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.
Read more...6 – 18 GHz driver amplifier RF Design
Telecoms, Datacoms, Wireless, IoT
The QPA0022D from Qorvo is a high-performance driver amplifier covering a range of 6 to 18 GHz and fabricated on Qorvo’s production 0,15 µm pHEMT process.
Read more...2-wire quad voltage output DAC Altron Arrow
Analogue, Mixed Signal, LSI
The DAC has a 2-wire serial interface that operates at clock rates up to 400 kHz, and this interface is SMBus compatible, allowing multiple devices to be placed on the same bus.
Read more...Dual-channel ADC for RF applications RFiber Solutions
Analogue, Mixed Signal, LSI
The ARF0471 from Advanced RF is a dual-channel, 14-bit, 3 GSPS ADC, which features an on-chip buffer and sample-and-hold circuit.
printer friendly version