Frequency-tunable bandstop-bandpass dual-function microwave filter. - Kangho Lee; Tae-Hak Lee; Gyu Churl Park; Hjalti H. Sigmarsson; Juseop Lee (IEICE Electron. Express, 2015)

Active tunable substrate integrated evanescent-mode cavity resonator using negative resistance. - Shahrokh Saeedi; Sattar Atash-bahar; Hjalti H. Sigmarsson (RWS, 2016)

Miniaturized evanescent-mode cavity SIW bandpass filter with spurious suppression. - Shahrokh Saeedi; Hjalti H. Sigmarsson (RWS, 2018)

Fine Resolution Position Estimation Using Kalman Filtering. - Brian Sun; Mark Yeary; Hjalti H. Sigmarsson; Jay W. McDaniel (I2MTC, 2019)

Compact Wide-Stopband Bandpass Filter Based on Highly-Loaded Substrate Integrated Cavity Resonators. - Shahrokh Saeedi; Gokhan Ariturk; Hjalti H. Sigmarsson (RWS, 2020)

Frequency Agile Microstrip Patch Antenna Using an Anisotropic Artificial Dielectric Layer (AADL): Modeling and Design. - Jorge L. Salazar-Cerreno; Zeeshan Qamar; Shahrokh Saeedi; Binbin Weng; Hjalti H. Sigmarsson (IEEE Access, 2020)

Design of a Wideband Surface Mountable Suspended Integrated Strip-Line Technology. - Christopher J. Walker; Hjalti H. Sigmarsson; Jay W. McDaniel (IEEE Access, 2020)

Lossy Microwave Filters With Active Shape Correction. - Gokhan Ariturk; Hjalti H. Sigmarsson (IEEE Access, 2021)

Frequency Agile Slot Antenna Using Contactless Capacitive Loading. - Marc R. Thibodeau; Adrian L. Bauer; Clayton G. Blosser; Shahrokh Saeedi; Jessica E. Ruyle; Hjalti H. Sigmarsson (IEEE Access, 2022)

Tunable SIW-Based Evanescent-Mode Cavity-Backed Slot Antenna With Contactless Tuning. - Rosalind Agasti; Clayton G. Blosser; Jessica E. Ruyle; Hjalti H. Sigmarsson (IEEE Access, 2023)