Fully-integrated wideband TTD core chip with serial control

The design and performance of a fully-integrated wideband TTD core chip is presented. The integration philosophy is discussed. The MMIC presented integrates 7-bit amplitude and 6-bit time-delay, as well as the control functions of a transmit/receive module. This control includes a serial-to-parallel converter with TTL-compatible input. The MMIC is realised on the 0.25µm PHEMT (ed02ah) process of OMMIC.