Technologies by John Cressler
D-Band Vector Modulator Phase Shifter (VMPS) Achieves Higher Bandwidth

Current D-band millimeter wave VMPSs have limitations

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A Low-Loss Broadband Quadrature Signal Generation Technique for Highly Balanced Signals
Enabling efficient, wide bandwidth for mm-wave applications
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A Bi-Directional Amplifier for 5G Communication
A switchless, bi-directional amplifier circuit replace for loss compensation in passive beamformer (a form of signal processing) in a 5G communication beamformer chipset
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