Agilent 5991-3162EN Millimeter Wave Frequency Extenders From Virginia Diodes Inc. - Technical Overview c2014 free download

File name 5991-3162EN Millimeter Wave Frequency Extenders From Virginia Diodes Inc. - Technical Overview c2014

Keysight Technologies Millimeter Wave Frequency Extenders From Virginia Diodes Inc. for the Keysight PSG Signal Generators Technical Overview The Keysight Technologies, Inc. PSG-series signal generators provide outstanding performance across a broad set of characteristics, including output power, phase noise, spurious and harmonic distortion, as well as flexible modulation for frequencies up to 67 GHz. When paired with a new line of frequency extenders from Virginia Diodes Inc. (VDI), many of these capabilities are available up to 1.1 THz to meet the requirements of both established and emerging millimeter wave applications. 02 | Keysight | Millimeter Wave Frequency Extenders From Virginia Diodes Inc. for the Keysight PSG Signal Generators - Technical Overview The E8257DVxx signal generator frequency extension modules expand the operating range of microwave signal generators up into the millimeter frequency range. They combine high output power and low phase noise with broad frequency coverage over full waveguide bands. Standard features include TTL-controlled on/off modulation up to approximately 1 kHz and voltage-controlled RF attenuation (UCA). The RF signal from the signal generator gets multiplied in the module to a much higher frequency and the resulting millimeter signal exits through the rectangular waveguide output. A single coaxial cable provides the connection between the signal generator and the E8257DVxx module. Figure 1. This E8257DV03 frequency extender covers the WR3.4 band from 220 to 330 GHz. The E8257DVxx modules provide two different RF inputs, depending on the frequency range of the signal generator. The standard RF input is designed for 20 GHz signal generators (see Figure 2), while the high-frequency RF input is optimized for a 40 or 50 GHz signal generator, depending on the waveguide band. The high frequency input bypasses the first multiplication block (i.e. a doubler or tripler) resulting in a cleaner output spectrum. A B Figure 2. The standard frequency [A] and high frequency [B] RF input modes are shown above. The coaxial jumper connection must be used when using standard frequency operation. With the jumper removed, only the high frequency RF input port is operational. 03 | Keysight | Millimeter Wave Frequency Extenders From Virginia Diodes Inc. for the Keysight PSG Signal Generators - Technical Overview The effects of multiplication on modulated signals Multiplication works very well for both CW and pulsed signals. Note, however, that the pulse rise and fa