Results 41 to 50 of about 1,181 (174)

A Compact 55–66 GHz Single‐Chip FMCW Transceiver Featuring 12‐dBm Psat and >11‐GHz Tuning Range in 65‐nm SOI CMOS

Electronics Letters, Volume 62, Issue 1, January/December 2026.
This paper presents a fully‐integrated frequency‐modulated continuous‐wave (FMCW) transceiver chip operating from 55 to 66 GHz, fabricated in a 65 nm silicon‐on‐insulator (SOI) CMOS process. The chip incorporates a wide‐tuning‐range voltage‐controlled oscillator (VCO) with four digitally selectable states, a driver amplifier, a power amplifier, a low ...
Yulong Xu, Zongming Duan, Jin Xu, Yingsong Li, Bing Wu   +4 more
wiley   +1 more source

A 0.85–1.25 GHz On‐Chip Tunable Bandpass Filter Using Cascaded Parametric Mixing in GaAs MMIC

Electronics Letters, Volume 62, Issue 1, January/December 2026.
This paper demonstrates the first fully integrated GaAs MMIC implementation of a parametric frequency‐translated bandpass filter using cascaded up‐ and down‐conversion stages around a fixed idler resonance. The proposed architecture enables continuous tuning from 0.85 to 1.25 GHz with near‐unity gain, <3 dB insertion loss and >30 dB out‐of‐band ...
Sean C. Chen, Lap K. Yeung, Yan Jean Wei, Yuanxun Ethan Wang   +3 more
wiley   +1 more source

Facies mosaic distribution and stratigraphic disorder of a mixed carbonate–siliciclastic tidal succession

Sedimentology, Volume 73, Issue 1, Page 40-82, January 2026.
ABSTRACT Complex stratigraphic arrangements may be generated through lateral facies transitions from the strata of aeolian depositional systems into bordering peritidal deposits. In such scenarios, sedimentary architectural complexity and associated facies heterogeneities are governed by the interplay between autogenic processes inherent to tidal ...
Victor J. P. Hême de Lacotte, Chester H. C. Davies, Briony J. Bowler, Stuart M. Clarke, A. Graham Leslie, Douglas A. Sprinkel   +5 more
wiley   +1 more source

Multiband Crescent Array Antennas for THz Applications

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
The design and analysis of multiband crescent array antennas for THz applications are proposed in this article. Beginning with a 1 × 2 array, then on to a 1 × 4 array, and finally to a 2 × 4 crescent patch array, the analysis is carried out from a single‐element THz crescent patch.
Harini V., Pramod Kumar, Sairam M. V. S., Madhu R., Pallavi M., Deepali Deepali   +5 more
wiley   +1 more source

On‐chip GaAs‐based dual‐band bandpass filters/isolators (DBPFIs)

Electronics Letters, 2023
MMIC co‐designed RF components exhibiting the collocated RF signal processing actions of a dual‐band bandpass filter and an RF isolator (DBPFI) are presented. They are based on in‐parallel cascaded bandpass filters/isolators that operate at two different
Andrea Ashley, Dimitra Psychogiou
doaj   +1 more source

Broadband GaN Doherty Power Amplifier With Integrated Unequal Wilkinson and λ/4 Phase Network for Midband 5G

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
This paper presents the design and implementation of a high‐efficiency two‐way Doherty power amplifier (DPA) for sub‐6 GHz 5G New Radio (NR) applications, specifically targeting the n78 band (3.3–3.8 GHz). The proposed gallium nitride (GaN)‐based DPA delivers a peak output power of 42.5 dBm, a gain of 13.3 dB, and a maximum power‐added efficiency (PAE)
Tugba Haykir Ergin, Ismail Sisman, Palandoken Merih   +2 more
wiley   +1 more source

Impact of Parasitic Conductive Interfaces on the DC and RF Performance of GaN‐on‐GaN HEMTs

physica status solidi (a), Volume 222, Issue 22, November 2025.
GaN‐on‐GaN HEMTs suffering from a parasitic conductive interface show a power added efficiency drop from an expected 50 % to 15 %. The interface forms on GaN wafers prior to epitaxy due to Si contamination to absorb RF power, introduce propagation loss and loading effects, reduce gain by 50 %, and fmax and Pout by 40 % compared to GaN‐on‐SiC HEMTs ...
Amer Bassal, Serguei Chevtchenko, Frank Schnieder, Thomas Flisgen, Olof Bengtsson, Frank Brunner, Oliver Hilt   +6 more
wiley   +1 more source

Four-channel GaAs multifunction chips with bottom RF interface for Ka-band SATCOM antennas

ETRI Journal
Receiver and transmitter monolithic microwave integrated circuit (MMIC) multifunction chips (MFCs) for active phased-array antennas for Ka-band satellite communication (SATCOM) terminals have been designed and fabricated using a 0.15-μm GaAs ...
Jin-Cheol Jeong, Junhan Lim, Dong-Pil Chang   +2 more
doaj   +1 more source

High Power, Thermally Efficient, X-band 3D T/R Module With Calibration Capability for Space Radar

IEEE Access, 2018
Earth observation from space radar is based on the active electronically steerable antenna (AESA) whose performances count on reliable and powerful transmit/receive modules (TRM).
Antonio Fina, Alessandro Di Carlofelice, Francesco De Paulis   +2 more
doaj   +1 more source

Physico‐Chemical, Microstructural, and Cooking Characteristics of Faba Bean (Vicia faba) Varieties From New Zealand

Legume Science, Volume 7, Issue 3, September 2025.
ABSTRACT This research examines the physical and microstructural properties of New Zealand faba beans (Vicia faba), with a focus on their influence on swelling, hydration, and cooking characteristics. Four native varieties (Early Long Pod, Evergreen, Coles Dwarf, and Janet) were studied.
Navneet, Jaspreet Singh, Nneka I. Ajomiwe, Lovedeep Kaur   +3 more
wiley   +1 more source