A 26-GHz CMOS Power Amplifier with Sea-of-Gates Transistor Layout and Systematic Modeling Techniques

A 26-GHz CMOS power amplifier is designed with sea-of-gates transistor layout to improve matching for phased array applications. A systematic modeling technique is proposed and verified to develop the hybrid model for high-frequency simulations. The power amplifier achieves a peak gain of 20 dB with a 9.2-GHz −3-dB bandwidth. At 26 GHz, it can offer a saturated output power of 13 dBm with a peak power added efficiency of 27%. The measured and simulated results are in good agreement.