We report the first bulk acoustic wave (BAW) radio frequency (RF) coupler and switch utilizing, offering a record small footprint, lower insertion loss than previously reported, and dual coupling and ...
This work presents a generalized synthesis framework for double-ladder acoustic filters with a validation through a high-performance dual-band duplexer on a LiTaO₃-on-insulator (LTOI) platform. The me...
Bulk acoustic wave (BAW) filters are widely used to meet the stringent specifications of modern radio-frequency (RF) front-end modules. However, the increasing demand for wider frequency bands in rece...
We report a novel surface acoustic wave topology that realizes arbitrarily configurable group delay profiles over wide passbands using skewed chirped acoustic delay lines. In this geometry, frequency ...
A 3D printed wideband tunable RF signal processing true time delay (TTD) circuit is proposed from a wideband RF Hilbert transformer and tunable transmission line. The RF Hilbert transformer rotates th...
A fully-integrated, compact and low-loss 4-bit passive phase shifter (PS) employing Phase Change Material (PCM) switches is presented for Ka-band phased-array receivers. The design leverages the non-v...
This paper presents a D-band 5-bit passive switch-type phase shifter (PS) that combines a compact switch-self-phase-shifting (SSPS) unit with a dual high-pass phase-shifting unit. The SSPS unit innova...
This paper presents a compact passive mixed-type true-time delay (TTD) circuit for wideband phased-array systems. The proposed circuit cascades a reflective TTD and two APN-based TTDs. In the reflecti...
This paper proposes a transformer-based ultra-wideband switchable 180° phase shifter, featuring consistent trisection filtering responses in both states. All adjacent resonators are coupled through el...
This paper presents a 38-41 GHz direct-conversion I/Q transmitter in 0.12-μm GaN technology that achieves high linearity and low error-vector-magnitude (EVM) for high-order 4096-QAM modulation. The pr...