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研究成果 2003 2019

フィルター
記事
2019

A −192.7-dBc/Hz FOm Ku-band VCO using a DGS resonator with a high-band transmission pole in 0.18-μm CMOS technology

Jahan, N., Barakat, A. & Pokharel, R. K., 12 2019, : : IEEE Microwave and Wireless Components Letters. 29, 12, p. 814-817 4 p., 8906129.

研究成果: ジャーナルへの寄稿記事

Defected ground structures
voltage controlled oscillators
Variable frequency oscillators
Resonators
Poles
1 引用 (Scopus)

Design and implementation of dual-mode inductors for dual-band wireless power transfer systems

Barakat, A., Yoshitomi, K. & Pokharel, R., 8 1 2019, : : IEEE Transactions on Circuits and Systems II: Express Briefs. 66, 8, p. 1287-1291 5 p., 8546792.

研究成果: ジャーナルへの寄稿記事

Inductance
Frequency bands
Capacitors
Networks (circuits)
Compensation and Redress
1 引用 (Scopus)

General silicon-on-insulator higher-order mode converter based on substrip dielectric waveguides

Abu-Elmaaty, B. E., Sayed, M. S., Pokharel, R. & Shalaby, H. M. H., 3 1 2019, : : Applied Optics. 58, 7, p. 1763-1771 9 p.

研究成果: ジャーナルへの寄稿記事

Dielectric waveguides
dielectric waveguides
converters
Waveguides
insulators

High Efficiency and Small Group Delay Variations 0.18-μ m CMOS UWB Power Amplifier

Mosalam, H., Allam, A., Jia, H., Abdel-Rahman, A. B. & Pokharel, R., 4 1 2019, : : IEEE Transactions on Circuits and Systems II: Express Briefs. 66, 4, p. 592-596 5 p., 8464178.

研究成果: ジャーナルへの寄稿記事

Broadband amplifiers
Group delay
Power amplifiers
Ultra-wideband (UWB)
Metals

Independent Matching Dual-Band Compact Quarter-Wave Half-Slot Antenna for Millimeter-Wave Applications

Aboualalaa, M., Mansour, I., Elsadek, H., Abdel-Rahman, A. B., Allam, A., Abo-Zahhad, M., Yoshitomi, K. & Pokharel, R. K., 1 1 2019, : : IEEE Access. 7, p. 130782-130790 9 p., 8831375.

研究成果: ジャーナルへの寄稿記事

公開
Slot antennas
Millimeter waves
Antennas
Equivalent circuits
Resonators

Performance enhancement of 60 GHz CMOS band pass filter employing oxide height virtual increase

Mahmoud, N., Barakat, A., Nasr, M. E. & Pokharel, R. K., 1 1 2019, : : Progress In Electromagnetics Research M. 77, p. 125-134 10 p.

研究成果: ジャーナルへの寄稿記事

Bandpass filters
bandpass filters
Oxides
CMOS
Metals

Separation-Misalignment Insensitive WPT System Using Two-Plane Printed Inductors

Alshhawy, S., Barakat, A., Yoshitomi, K. & Pokharel, R. K., 10 2019, : : IEEE Microwave and Wireless Components Letters. 29, 10, p. 683-686 4 p., 8821558.

研究成果: ジャーナルへの寄稿記事

inductors
misalignment
Inductance
inductance
Transmitters
2018
4 引用 (Scopus)

22-GHz-Band Oscillator Using Integrated H-Shape Defected Ground Structure Resonator in 0.18-μ m CMOS Technology

Jahan, N., Ab Rahim, S. A. E., Mosalam, H., Barakat, A., Kaho, T. & Pokharel, R. K., 3 2018, : : IEEE Microwave and Wireless Components Letters. 28, 3, p. 233-235 3 p.

研究成果: ジャーナルへの寄稿記事

Defected ground structures
Resonators
CMOS
resonators
oscillators
15 引用 (Scopus)
Antenna feeders
Ultra-wideband (UWB)
Resonators
Antennas
Notch filters
5 引用 (Scopus)

Design Approach for Efficient Wireless Power Transfer Systems during Lateral Misalignment

Barakat, A., Yoshitomi, K. & Pokharel, R. K., 9 2018, : : IEEE Transactions on Microwave Theory and Techniques. 66, 9, p. 4170-4177 8 p., 8412753.

研究成果: ジャーナルへの寄稿記事

misalignment
Defected ground structures
Resonators
resonators
alignment
1 引用 (Scopus)
Cognitive radio
Bandpass filters
Resonators
Antennas
Varactors
1 引用 (Scopus)

Design of Low-Loss Coplanar Transmission Lines Using Distributed Loading for Millimeter-Wave Power Divider/Combiner Applications in 0.18-μm CMOS Technology

Abd El-Hameed, A. S., Barakat, A., Abdel-Rahman, A. B., Allam, A. & Pokharel, R., 12 1 2018, : : IEEE Transactions on Microwave Theory and Techniques. 66, 12, p. 5221-5229 9 p., 8506598.

研究成果: ジャーナルへの寄稿記事

Wave power
dividers
Millimeter waves
millimeter waves
transmission lines
2 引用 (Scopus)

Dual Band VCO Based on a High-Quality Factor Switched Interdigital Resonator for the Ku Band Using 180-nm CMOS Technology

Mansour, I., Aboualalaa, M., Allam, A., Abdel-Rahman, A. B., Abo-Zahhad, M. & Pokharel, R., 12 1 2018, : : IEEE Transactions on Circuits and Systems II: Express Briefs. 65, 12, p. 1874-1878 5 p., 8320300.

研究成果: ジャーナルへの寄稿記事

Variable frequency oscillators
Resonators
Transistors
Phase noise
Switched filters
6 引用 (Scopus)

High-Efficiency CMOS RF-to-DC Rectifier Based on Dynamic Threshold Reduction Technique for Wireless Charging Applications

Mohamed, M. M., Fahmy, G. A., Abdel-Rahman, A. B., Allam, A., Barakat, A., Abo-Zahhad, M., Jia, H. & Pokharel, R. K., 8 21 2018, : : IEEE Access. 6, p. 46826-46832 7 p., 8443341.

研究成果: ジャーナルへの寄稿記事

Transistors
Diodes
Threshold voltage
Conversion efficiency
Capacitors
9 引用 (Scopus)

Modeling, simulation, and fabrication of bi-directional mode-division multiplexing for silicon-on-insulator platform

Nawwar, O. M., Shalaby, H. M. H. & Pokharel, R. K., 1 1 2018, : : Applied Optics. 57, 1, p. 42-51 10 p.

研究成果: ジャーナルへの寄稿記事

multiplexing
Multiplexing
division
Waveguides
platforms
7 引用 (Scopus)

Photonic crystal-based compact hybrid WDM/MDM (De)multiplexer for SOI platforms

Nawwar, O. M., Shalaby, H. M. H. & Pokharel, R. K., 9 1 2018, : : Optics Letters. 43, 17, p. 4176-4179 4 p.

研究成果: ジャーナルへの寄稿記事

SOI (semiconductors)
platforms
photonics
division
wavelengths
1 引用 (Scopus)

Ultracompact CMOS 60-GHz Tapped-Line Combline BPF with Two Transmission Zeros Using Defected Ground Structures

Elsaidy, E., Barakat, A., Abdel-Rahman, A. B., Allam, A. & Pokharel, R. K., 9 2018, : : IEEE Transactions on Components, Packaging and Manufacturing Technology. 8, 9, p. 1642-1649 8 p., 8423676.

研究成果: ジャーナルへの寄稿記事

Defected ground structures
Bandpass filters
Metals
Insertion losses
Resonators
2017
8 引用 (Scopus)

1.06 FoM and Compact Wireless Power Transfer System Using Rectangular Defected Ground Structure Resonators

Tahar, F., Saad, R., Barakat, A. & Pokharel, R., 11 1 2017, : : IEEE Microwave and Wireless Components Letters. 27, 11, p. 1025-1027 3 p., 8059822.

研究成果: ジャーナルへの寄稿記事

Defected ground structures
Resonators
resonators
Coplanar waveguides
Antenna feeders

60 GHz CMOS circular patch antenna-on-chip

Barakat, A., Allam, A., Abdel-Rahman, A. B., Elsadek, H., Pokharel, R. K., Bisognin, A. & Luxey, C., 2 2017, Microwave Journal, 60, 2, p. 90-100 11 p.

研究成果: 専門家出版物への寄稿タイプ 記事

Microstrip antennas
Antennas
Antenna feeders
Surface waves
Bandwidth

A 1.9 GHz low-phase-noise complementary cross-coupled FBAR-VCO without additional voltage headroom in 0.18 μm CMOS technology

Zhang, G., Anand, A., Hikichi, K., Tanaka, S., Esashi, M., Hashimoto, K. Y., Taniguchi, S. & Pokharel, R. K., 4 2017, : : IEICE Transactions on Electronics. E100C, 4, p. 363-369 7 p.

研究成果: ジャーナルへの寄稿記事

Acoustic resonators
Variable frequency oscillators
Phase noise
Electric potential
Capacitors
3 引用 (Scopus)

A CMOS ultrawideband pulse generator for 3-5 GHz applications

Dong, R., Kanaya, H. & Pokharel, R. K., 6 2017, : : IEEE Microwave and Wireless Components Letters. 27, 6, p. 584-586 3 p., 7930404.

研究成果: ジャーナルへの寄稿記事

binary phase shift keying
Binary phase shift keying
Pulse generators
pulse generators
Ultra-wideband (UWB)
32 引用 (Scopus)

A Novel Technique for Compact Size Wireless Power Transfer Applications Using Defected Ground Structures

Hekal, S., Abdel-Rahman, A. B., Jia, H., Allam, A., Barakat, A. & Pokharel, R., 2 1 2017, : : IEEE Transactions on Microwave Theory and Techniques. 65, 2, p. 591-599 9 p., 7731202.

研究成果: ジャーナルへの寄稿記事

Defected ground structures
Resonators
resonators
miniaturization
equivalent circuits
5 引用 (Scopus)

Design and Application of Virtual Inductance of Square-Shaped Defected Ground Structure in 0.18-$\mu \text{m}$ CMOS Technology

Jahan, N., Ab Rahim, S. A. E., Barakat, A., Kaho, T. & Pokharel, R. K., 9 2017, : : IEEE Journal of the Electron Devices Society. 5, 5, p. 299-305 7 p., 7984797.

研究成果: ジャーナルへの寄稿記事

Defected ground structures
Inductance
Technology
Complement Factor H
Variable frequency oscillators
17 引用 (Scopus)

Design of a Dual-Band Microstrip Antenna with Enhanced Gain for Energy Harvesting Applications

Aboualalaa, M., Abdel-Rahman, A. B., Allam, A., Elsadek, H. & Pokharel, R. K., 1 1 2017, : : IEEE Antennas and Wireless Propagation Letters. 16, p. 1622-1626 5 p., 7820049.

研究成果: ジャーナルへの寄稿記事

Energy harvesting
Microstrip antennas
Antennas
Bandwidth
Wi-Fi
12 引用 (Scopus)

Dual-Band Defected Ground Structures Wireless Power Transfer System With Independent External and Inter-Resonator Coupling

Tahar, F., Barakat, A., Saad, R., Yoshitomi, K. & Pokharel, R. K., 12 2017, : : IEEE Transactions on Circuits and Systems II: Express Briefs. 64, 12, p. 1372-1376 5 p., 8010857.

研究成果: ジャーナルへの寄稿記事

Defected ground structures
Resonators
Microstrip lines
Bandpass filters
10 引用 (Scopus)

Ultracompact 60-GHz CMOS BPF Employing Broadside-Coupled Open-Loop Resonators

El-Hameed, A. S. A., Barakat, A., Abdel-Rahman, A. B., Allam, A. & Pokharel, R. K., 9 2017, : : IEEE Microwave and Wireless Components Letters. 27, 9, p. 818-820 3 p., 8010799.

研究成果: ジャーナルへの寄稿記事

Bandpass filters
bandpass filters
Resonators
CMOS
resonators
2016
11 引用 (Scopus)

60 GHz on-chip mixed coupled BPF with H-shaped defected ground structures

Barakat, A., Pokharel, R. & Kaho, T., 4 1 2016, : : Electronics Letters. 52, 7, p. 533-535 3 p.

研究成果: ジャーナルへの寄稿記事

Defected ground structures
Insertion losses
Bandpass filters
Resonators
Bandwidth
1 引用 (Scopus)

A-193 (dBc/Hz) FoM and -126 (dBc/Hz) phase noise octagonal ring oscillator using pulse injection technique

Yousef, K., Jia, H., Allam, A., Pokharel, R., Abdel-Rahman, A. & Kanaya, H., 7 1 2016, : : Microwave and Optical Technology Letters. 58, 7, p. 1760-1762 3 p.

研究成果: ジャーナルへの寄稿記事

Pulse generators
Phase noise
figure of merit
oscillators
injection
18 引用 (Scopus)

Compact frequency reconfigurable filtennas using varactor loaded T-shaped and H-shaped resonators for cognitive radio applications

Atallah, H. A., Abdel-Rahman, A. B., Yoshitomi, K. & Pokharel, R. K., 6 18 2016, : : IET Microwaves, Antennas and Propagation. 10, 9, p. 991-1001 11 p.

研究成果: ジャーナルへの寄稿記事

Varactors
Cognitive radio
Resonators
Tuning
Monopole antennas
7 引用 (Scopus)
Frequency synthesizers
Phase locked loops
Phase noise
Jitter
Variable frequency oscillators
15 引用 (Scopus)

Compact Size On-Chip 60 GHz H-Shaped Resonator BPF

Mahmoud, N., Barakat, A., Abdel-Rahman, A. B., Allam, A. & Pokharel, R. K., 9 2016, : : IEEE Microwave and Wireless Components Letters. 26, 9, p. 681-683 3 p., 7542143.

研究成果: ジャーナルへの寄稿記事

Insertion losses
Bandpass filters
bandpass filters
insertion loss
Resonators
15 引用 (Scopus)

Compact Wireless Power Transfer System Using Defected Ground Bandstop Filters

Hekal, S., Abdel-Rahman, A. B., Jia, H., Allam, A., Barakat, A., Kaho, T. & Pokharel, R., 10 1 2016, : : IEEE Microwave and Wireless Components Letters. 26, 10, p. 849-851 3 p.

研究成果: ジャーナルへの寄稿記事

bandstop filters
Notch filters
electromagnetism
Circuit simulation
planar structures
13 引用 (Scopus)

Design of dual band-notched CPW-fed UWB planar monopole antenna using microstrip resonators

Atallah, H. A., Abdel-Rahman, A. B., Yoshitomi, K. & Pokharel, R., 1 1 2016, : : Progress in Electromagnetics Research Letters. 59, p. 51-56 6 p.

研究成果: ジャーナルへの寄稿記事

Monopole antennas
Coplanar waveguides
Antenna feeders
Ultra-wideband (UWB)
Resonators
Substrates
Phase noise
Finite element method
Processing
3 引用 (Scopus)

Miniaturized low loss 60 GHz CMOS mixed coupled BPF with patterned ground shield

Barakat, A., Hanif, M. & Pokharel, R., 3 1 2016, : : Microwave and Optical Technology Letters. 58, 3, p. 697-699 3 p.

研究成果: ジャーナルへの寄稿記事

Insertion losses
Bandpass filters
Resonators
CMOS
chips
5 引用 (Scopus)
Defected ground structures
MIMO (control systems)
patch antennas
antenna arrays
Microstrip antennas
5 引用 (Scopus)

Performance Analysis of Multicode OCDM Networks Supporting Elastic Transmission With QoS Differentiation

Farghal, A. E. A., Shalaby, H. M. H., Kato, K. & Pokharel, R., 2 1 2016, : : IEEE Transactions on Communications. 64, 2, p. 741-752 12 p., 7368162.

研究成果: ジャーナルへの寄稿記事

Blocking probability
Multiplexing
Quality of service
Congestion control (communication)
Frequency hopping
7 引用 (Scopus)

Reconfigurable band-notched slot antenna using short circuited quarter wavelength microstrip resonators

Atallah, H. A., Abdel-Rahman, A. B., Yoshitomi, K. & Pokharel, R., 1 1 2016, : : Progress In Electromagnetics Research C. 68, p. 119-127 9 p.

研究成果: ジャーナルへの寄稿記事

Slot antennas
Resonators
Wavelength
Antennas
Radio systems
4 引用 (Scopus)
Monopole antennas
Coplanar waveguides
Antenna feeders
Cognitive radio
Ultra-wideband (UWB)
2015
1 引用 (Scopus)

Monolithic integration of BST thin film varactors and Au electroplated thick film inductors above IC

Asano, S., Pokharel, R., Anand, A., Hirano, H. & Tanaka, S., 8 1 2015, : : IEEJ Transactions on Sensors and Micromachines. 135, 8, p. 323-329 7 p.

研究成果: ジャーナルへの寄稿記事

Barium strontium titanate
Varactors
Thick films
Integrated circuits
Thin films
3 引用 (Scopus)

Optical Code-Division Multiplexing (OCDM) Networks Adopting Code-Shift Keying/Overlapping PPM Signaling: Proposal and Performance Analysis

Farghal, A. E., Shalaby, H. M. H., Kato, K. & Pokharel, R., 10 1 2015, : : IEEE Transactions on Communications. 63, 10, p. 3779-3788 10 p., 7192599.

研究成果: ジャーナルへの寄稿記事

Group velocity dispersion
Multiplexing
Pulse position modulation
Intersymbol interference
Multiple access interference
2014
2 引用 (Scopus)

A 10-bit 50MS/s 350 μw small die area capacitive digital-to-analog converter for bluetooth applications

Kanemoto, D., Oshiro, K., Yoshida, K., Pokharel, R. & Kanaya, H., 2014, : : IEEJ Transactions on Electronics, Information and Systems. 134, 2, p. 328-329 2 p.

研究成果: ジャーナルへの寄稿記事

Bluetooth
Digital to analog conversion
Capacitors
Electric potential
Energy dissipation
2 引用 (Scopus)
Frequency synthesizers
Phase locked loops
Identification (control systems)
Table lookup
Variable frequency oscillators
2013

60 GHz millimeter-wave CMOS integrated on-chip open loop resonator bandpass filters on patterned ground shields

Pokharel, R., Liu, X., Mat, D. A. A., Dong, R., Kanaya, H. & Yoshida, K., 2 2013, : : IEICE Transactions on Electronics. E96-C, 2, p. 270-276 7 p.

研究成果: ジャーナルへの寄稿記事

Bandpass filters
Millimeter waves
Resonators
Insertion losses
Bandwidth

A highly attenuative CMOS LNA at 5-6 GHz using negative GM circuit for UWB applications

Koirala, N., Anand, A., Pokharel, R. K., Kanaya, H. & Yoshida, K., 4 1 2013, : : Microwave and Optical Technology Letters. 55, 4, p. 894-899 6 p.

研究成果: ジャーナルへの寄稿記事

Low noise amplifiers
Ultra-wideband (UWB)
low noise
CMOS
amplifiers
10 引用 (Scopus)

CMOS ultra-wideband low noise amplifier design

Yousef, K., Jia, H., Pokharel, R., Allam, A., Ragab, M., Kanaya, H. & Yoshida, K., 5 27 2013, : : International Journal of Microwave Science and Technology. 328406.

研究成果: ジャーナルへの寄稿記事

amplifier design
Broadband amplifiers
Low noise amplifiers
Ultra-wideband (UWB)
low noise
57 引用 (Scopus)

Energy harvesting circuit on a one-sided directional flexible antenna

Kanaya, H., Tsukamaoto, S., Hirabaru, T., Kanemoto, D., Pokharel, R. K. & Yoshida, K., 2 28 2013, : : IEEE Microwave and Wireless Components Letters. 23, 3, p. 164-166 3 p., 6468126.

研究成果: ジャーナルへの寄稿記事

Energy harvesting
antennas
Antennas
Networks (circuits)
boosters

Low phase noise 14-bit digitally controlled CMOS quadrature ring oscillator

Pokharel, R., Nugroho, P., Anand, A., Tomar, A., Kanaya, H. & Yoshida, K., 2 2013, : : IEICE Transactions on Electronics. E96-C, 2, p. 262-269 8 p.

研究成果: ジャーナルへの寄稿記事

Phase noise
Tuning
Transistors
Noise abatement
Energy dissipation
14 引用 (Scopus)

Magnetic properties of nanostructured Fe-Co alloys

Rizal, C., Kolthammer, J., Pokharel, R. K. & Choi, B. C., 3 21 2013, : : Journal of Applied Physics. 113, 11, 113905.

研究成果: ジャーナルへの寄稿記事

magnetic properties
saturation
magnetization
room temperature
buffers

Sixty-GHz on-chip bandpass filter designed with multiple split ring resonators

Mat, D. A. A., Pokharel, R. K., Sapawi, R., Kanaya, H. & Yoshida, K., 5 1 2013, : : Microwave and Optical Technology Letters. 55, 5, p. 1182-1185 4 p.

研究成果: ジャーナルへの寄稿記事

Bandpass filters
bandpass filters
Resonators
resonators
chips