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Tu4B-1: Shape estimation and pattern correction of flexible phased arrays using local curvature measurements
This work presents a general method to estimate the unknown shapes of mechanically flexible phased arrays using strain gauge-based curvature measurements. Such information is crucial to resolve the po...
Tu4B-2: A 2:1 Bandwidth 3–6GHz Dual-Polarized True-Time-Delay Based Reconfigurable Intelligent Surface (RIS)
This paper presents a 144-element 3–6 GHz dual-polarized true-time-delay (TTD) reconfigurable intelligent surface (RIS). The RIS employs commercial SP4T RF switches and TTD lines to accomplish wideban...
Tu4B-3: Chirp Sequence-Based Beamwidth Control in a Reconfigurable Intelligent Surface
Reconfigurable intelligent surfaces (RIS) have been attracting attention as a technology to expand coverage, particularly in millimeter-wave communication systems, which are highly susceptible to bloc...
Tu4B-4: Enhanced EIRP and Reconfigurable Polarization Multi-Feed Active Antenna Module for Millimeter-Wave Beamforming Phased Arrays
This paper introduces a novel enhanced effective isotropic radiated power (EIRP) and polarization reconfigurable multi-feed active antenna module (MAAM). The proposed MAAM consists of a dual-different...
Tu4B-5: Integrated Sensing and Communication Using Reconfigurable Intelligent Surface: Hardware, Ray-Tracing Demonstration, and Channel Measurement in the 6G Mid Band
We present a 2-bit reconfigurable intelligent surface (RIS) designed for operation in the 6G upper-mid band, enabling integrated sensing and communication (ISAC). The proposed RIS achieves independent...
Tu4B-6: Low Power Consumption and Beam-Sustainable Reconfigurable Intelligent Surface for Fixed Wireless Communication at Millimeter-Wave 5G Band
We present a low-power-consumption and beam-sustainable reconfigurable intelligent surface (RIS) for reliable millimeter-wave 5G fixed wireless communication in non-line-of-sight (NLOS) scenarios. Con...
Tu4C-1: KEYNOTE: Advancements in RF High Power Supply Chain and Ecosystem Enabling Transition from Vacuum Electron Devices to Multi-kW RF Solid-State Solutions and Systems
With the advent of multi-kW GaN on SiC transistors, operating at 100-150V, designed for megawatt systems to replace Vacuum Electron Devices where it is advantageous, the need arises to ensure that a c...
Tu4C-2: Planar Low-Loss Ultra-Wideband Coaxial-Less Balun and 4-Way Combiner for High-Power Applications
This paper presents a planar high-power low-loss ultra-wideband balun and its application in the design of a 4-way combiner. The balun is based on a ferrite core and printed circuit board (PCB) transm...
Tu4C-3: Continuous Current Mode Class-F Power Amplifier: A Solution for Bandwidth Extension in Low Breakdown Voltage Applications
This paper presents a comprehensive theoretical analysis and experimental validation of a Continuous Current Mode (CCM) Class-F power amplifier, designed to address the limitations of conventional con...
Tu4C-4: A Highly-Efficient 4.3GBaud Push-Pull LDMOS Based Pre-Driver with 6V Signal-Swing for GaN HEMTs in 22nm FDSOI
The paper presents a highly power efficient push-pull LDMOS-based pre-driver, implemented in a 22 nm FDSOI CMOS process, generating an output voltage swing of 6V for GaN-based switching power amplifie...