21 GHz to 27 GHz, GaAs, MMIC, I/Q Upconverter

The HMC815B is a compact gallium arsenide (GaAs), pseudomorphic high electron mobility transistor (pHEMT), monolithic microwave integrated circuit (MMIC) upconverter in a RoHS compliant package that operates from 21 GHz to 27 GHz. This device provides a small signal conversion gain of 12 dB and a sideband rejection of 20 dBc. The HMC815B utilizes a driver amplifier proceeded by an in phase/quadrature (I/Q) mixer where the LO is driven by an active 2× multiplier. IF1 and IF2 mixer inputs are provided, and an external 90° hybrid is needed to select the required sideband. The I/Q mixer topology reduces the need for filtering of unwanted sideband.

The HMC815B is a smaller alternative to hybrid style single sideband (SSB) downconverter assemblies, and it eliminates the need for wire bonding by allowing the use of surface-mount manufacturing techniques.

The HMC815B is available in 4.90 mm × 4.90 mm, 32-terminal ceramic LCC package and operates over the −40°C to +85°C temperature range. An evaluation board for the HMC815B is also available upon request.

Applications

* Point to point and point to multipoint radios

* Military radars, electronic warfare, and electronic intelligence

* Satellite communications

* Sensors

* Conversion gain: 12 dB typical

* Sideband rejection: 20 dBc typical

* OP1dB compression: 20 dBm typical

* OIP3: 27 dBm typical

* 2× LO to RF isolation: 10 dB typical

* 2× LO to IF isolation: 15 dB typical

* RF return loss: 12 dB typical

* LO return loss: 15 dB typical

* IF return loss: 15 dB typical

* Exposed pad, 4.90 mm × 4.90 mm, 32-terminal, ceramic LCC