Asian
Journal of Physics

Anita Publications
FF-43, 1st Floor, Mangal Bazar, Laxmi Nagar, Delhi-110 092, India

Sub-terahertz high-power microfabricated folded-waveguide traveling-wave tubes: needs and challenges in realization
Anurag Srivastava and Subrata Kumar Datta 541

Conversion of dominant rectangular-waveguide-mode to azimuthally symmetric circular-waveguide-mode in sub-terahertz frequency band
Vishal Kesari, Sarah Farheen and Swappnal Panigrahi563

Theoretical analysis on the beam-wave interaction of a THz gyrotron oscillator
Ashutosh Singh575

Dual mode sheet beam electron gun for a sub THz rectangular planar traveling wave tube amplifier
Ishita Srivastava, Navya Sahu and G Naveen Babu583

Tunable terahertz dual-band inset-fed graphene-based circular microstrip antenna for 6G application
Raja Babu, Pradip Kumar Jain, and Manpuran Mahto591

Investigation of multimode behavior in a W-band, three-cavity gyroklystron amplifier using time-dependent multimode analysis and PIC simulation
Ankhi Debnath, M V Swati, and Gaurav Singh Baghel599

Spoof surface plasmon polariton based THz sensor
G Challa Ram, S Yuvaraj, M Venkata Subbarao, Naveen Kumar Maurya, D Ramesh Varma and M Triveni Eswari 609

Dual-loop optoelectronic oscillator based sub-terahertz signal generation
Chinthapalli Amulya, Harish V. Dixit and Subhradeep Pal617

Design of a 140 GHz extended interaction klystron
Vemula Bhanu Naidu, Dipanjan Gope and Subrata Kumar Datta625

Investigations of RF behavior of a sub-terahertz gyrotron for DNP-NMR application
Vishal Singh and M Thottappan 633

Folded-waveguide slow-wave structure for G-band traveling wave tube amplifier
Surya Prasath C and Richards Joe Stanislaus 641

RF behavior of dielectric window for 1 THz, 1 kW power gyrotron
Nitin Kumar, Shubham Choudhury, Narendra Kumar Singh, Hasina Khatun and Anirban Bera651

Design and analysis of sheet beam electron gun and periodic cusped magnet focusing system for W-band applications
Subham Chowdhury, Debasish Pal, Ayan Kumar Bandyopadhyay and Anirban Bera 657