An LO power distribution network design for integrated 60-ghz transceiver on chip

Abstract

This paper presents a local oscillation (LO) distribution network for the purpose of power splitting and distribution from a voltage-controlled oscillator (VCO) to a transmitter (Tx), receiver (Rx) and phase-locked loop (PLL) frequency synthesizer for an on-chip 60-GHz transceiver. The proposed LO distribution network architecture includes one input port and three output ports. The network circuit consists of four differential amplifiers to generate sufficient LO power and several transmission lines for power splitting and impedance matching. Since the proposed 60-GHz transceiver is based on a sub-harmonic direct-conversion architecture, the LO distribution network operates at 30-GHz frequen..