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Author

  • Ramesh Pokharel
2020
2019

45% RF-to-DC Conversion Efficiency Wireless Power Transfer System Through Biological Tissues Using Complex Conjugate Impedance Matching Taking Account of Tissue's Properties

Chalise, S., Nakao, M., Tahar, F., Barakat, A., Yoshitomi, K. & Pokharel, R. K., Jun 2019, 2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers Inc., p. 1419-1422 4 p. 8700821. (IEEE MTT-S International Microwave Symposium Digest; vol. 2019-June).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

70% Improvement in Q-factor of spiral inductor and its application in switched K-band VCO using 0.18 um CMOS technology

Mansour, I., Mansour, M., Aboualalaa, M., Allam, A., Abdel-Rahman, A. B., Abo-Zahhad, M. & Pokharel, R. K., Jan 16 2019, 2018 Asia-Pacific Microwave Conference, APMC 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 1133-1135 3 p. 8617138. (Asia-Pacific Microwave Conference Proceedings, APMC; vol. 2018-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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., Dec 2019, In : IEEE Microwave and Wireless Components Letters. 29, 12, p. 814-817 4 p., 8906129.

Research output: Contribution to journalArticle

Analysis and application of dual series resonances for low phase noise K-band VCO design in 0.18-μm CMOS technology

Jahan, N., Baichuan, C., Barakat, A. & Pokharel, R. K., Jan 1 2019, 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8702264. (Proceedings - IEEE International Symposium on Circuits and Systems; vol. 2019-May).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Compact Dual-Band Wireless Power Transfer Using Overlapped Single Loop Defected Ground Structure

Tahar, F., Chalise, S., Yoshitomi, K., Barakat, A. & Pokharel, R., Feb 11 2019, 2018 IEEE Wireless Power Transfer Conference, WPTC 2018. Institute of Electrical and Electronics Engineers Inc., 8639281. (2018 IEEE Wireless Power Transfer Conference, WPTC 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)
3 Citations (Scopus)

Design of multi-layers DGS resonator for phase noise improvement of K-Band VCOs in 0.18 µm CMOS technology

Mansour, I., Aboualalaa, M., Jahan, N., Barakat, A., Pokharel, R., Allam, A., Abdel-Rahman, A. B. & Abo-Zahhad, M., Jan 22 2019, 2018 IEEE 61st International Midwest Symposium on Circuits and Systems, MWSCAS 2018. Institute of Electrical and Electronics Engineers Inc., p. 178-181 4 p. 8623874. (Midwest Symposium on Circuits and Systems; vol. 2018-August).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dual-Band Defected Ground Structure Resonators Wireless Power Transfer System Connected to Voltage-Doubler Circuit

Tahar, F., Chalise, S., Barakat, A., Yoshitomi, K. & Pokharel, R. K., May 9 2019, 2019 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet 2019. Institute of Electrical and Electronics Engineers Inc., 8711815. (2019 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dual-band Rectenna Using Voltage Doubler Rectifier and Four-Section Matching Network

Aboualalaa, M., Mansour, I., Mansour, M., Bedair, A., Allam, A., Abo-Zahhad, M., Elsadek, H., Yoshitomi, K. & Pokharel, R. K., Feb 11 2019, 2018 IEEE Wireless Power Transfer Conference, WPTC 2018. Institute of Electrical and Electronics Engineers Inc., 8639451. (2018 IEEE Wireless Power Transfer Conference, WPTC 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Enhancing Dynamic Range of RF-to-DC Rectifier using Leakage Current Reduction Technique

Mahmoud, M., Fahmy, G., Abdel-Rahman, A. B., Allam, A., Abo-Zahhad, M., Jia, H. & Pokharel, R. K., Dec 2019, Proceedings of the International Japan-Africa Conference on Electronics, Communications and Computations, JAC-ECC 2019. Institute of Electrical and Electronics Engineers Inc., p. 58-62 5 p. 9051316. (Proceedings of the International Japan-Africa Conference on Electronics, Communications and Computations, JAC-ECC 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Experimental study of the effect of interconnects on phase noise of K-band VCO in 0.18μm CMOS technology

Chen, B., Jahan, N., Barakat, A. & Pokharel, R. K., Dec 2019, Proceedings of the 2019 IEEE Asia-Pacific Microwave Conference, APMC 2019. Institute of Electrical and Electronics Engineers Inc., p. 1670-1672 3 p. 9038781. (Asia-Pacific Microwave Conference Proceedings, APMC; vol. 2019-December).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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

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

Research output: Contribution to journalArticle

5 Citations (Scopus)

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. K., Apr 2019, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 66, 4, p. 592-596 5 p., 8464178.

Research output: Contribution to journalArticle

3 Citations (Scopus)

High FOM Dual Band Wireless Power Transfer using Bow-tie Defected Ground Structure Resonators

Saad, M. R., Tahar, F., Chalise, S., Barakat, A., Yoshitomi, K. & Pokharel, R. K., Feb 11 2019, 2018 IEEE Wireless Power Transfer Conference, WPTC 2018. Institute of Electrical and Electronics Engineers Inc., 8639134. (2018 IEEE Wireless Power Transfer Conference, WPTC 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

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., Jan 1 2019, In : IEEE Access. 7, p. 130782-130790 9 p., 8831375.

Research output: Contribution to journalArticle

Open Access

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

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

Research output: Contribution to journalArticle

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

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

Research output: Contribution to journalArticle

Silicon-on-insulator first-order mode converter based on binary phase plate

Abu-Elmaaty, B. E., Nawwar, O. M., Sayed, M. S., Shalaby, H. M. H. & Pokharel, R., Apr 1 2019, 2018 Proceedings of the Japan-Africa Conference on Electronics, Communications, and Computations, JAC-ECC 2018. Institute of Electrical and Electronics Engineers Inc., p. 127-129 3 p. 8679532. (2018 Proceedings of the Japan-Africa Conference on Electronics, Communications, and Computations, JAC-ECC 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Triple-Band Near-Field Wireless Power Transfer System Using Coupled Defected Ground Structure Band Stop Filters

Barakat, A., Alshhawy, S., Yoshitomi, K. & Pokharel, R. K., Jun 2019, 2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers Inc., p. 1411-1414 4 p. 8700853. (IEEE MTT-S International Microwave Symposium Digest; vol. 2019-June).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)
2018

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., Mar 2018, In : IEEE Microwave and Wireless Components Letters. 28, 3, p. 233-235 3 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

A DC-2.5 GHz high linearity CMOS attenuator in a 0.18μm technology

Abdalla, I. L., Jia, H. & Pokharel, R. K., Jan 1 2018, In : Procedia Manufacturing. 22, p. 591-597 7 p.

Research output: Contribution to journalConference article

A high-efficiency, low-power 2.4 GHz class AB PA for WBAN applications using load pull

Gadallah, A., Allam, A., Abdel-Rahman, A. B., Jia, H. & Pokharel, R. K., Mar 1 2018, 2017 Proceedings of the Japan-Africa Conference on Electronics, Communications, and Computers, JAC-ECC 2017. Institute of Electrical and Electronics Engineers Inc., p. 29-32 4 p. (2017 Proceedings of the Japan-Africa Conference on Electronics, Communications, and Computers, JAC-ECC 2017; vol. 2018-January).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

A K-Band VCO Employing High Active Q-factor Defected Ground Structure Resonator in 0.18pm CMOS Technology

Jahan, N., Baichuan, C., Pokharel, R. K. & Barakat, A., Apr 26 2018, 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8351670. (Proceedings - IEEE International Symposium on Circuits and Systems; vol. 2018-May).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Analysis of near field wireless power transfer using bow-tie defected ground structure

Saad, M. R., Tahar, F., Barakat, A., Yoshitomi, K. & Pokharel, R. K., Jan 8 2018, 2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings. Pasya, I. (ed.). Institute of Electrical and Electronics Engineers Inc., p. 495-498 4 p. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Broadband printed-dipole antenna for future 5G applications and wireless communication

El-Hameed, A. S. A., Barakat, A., Abdel-Rahman, A. B., Allam, A., Pokharel, R. K. & Yoshitomi, K., Feb 28 2018, RWS 2018 - Proceedings: 2018 IEEE Radio and Wireless Symposium. IEEE Computer Society, p. 106-108 3 p. (IEEE Radio and Wireless Symposium, RWS; vol. 2018-January).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Compact 24GHz half-slot antenna for energy combining

Aboualalaa, M., Abdel-Rahman, A. B., Allam, A., Pokharel, R. K., Yoshitomi, K. & Elsadek, H., May 23 2018, 2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018. Institute of Electrical and Electronics Engineers Inc., (2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)
18 Citations (Scopus)

Degree of freedom to select coupling coefficent and quality factor in near-field wireless power transfer: A case study of using DGS Structures

Pokharel, R., Barakat, A., Tahar, F. & Hekal, S., Aug 28 2018, IEEE MTT-S International Microwave and RF Conference, IMaRC 2017. Institute of Electrical and Electronics Engineers Inc., p. 87-89 3 p. 8449719

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Design Approach for Efficient Wireless Power Transfer Systems during Lateral Misalignment

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

Research output: Contribution to journalArticle

8 Citations (Scopus)
1 Citation (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. K., Dec 2018, In : IEEE Transactions on Microwave Theory and Techniques. 66, 12, p. 5221-5229 9 p., 8506598.

Research output: Contribution to journalArticle

2 Citations (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. K., Dec 2018, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 65, 12, p. 1874-1878 5 p., 8320300.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Dual Resonance Circuits by Defected Ground Structure Resonators for Low Phase Noise K-Band CMOS VCO

Pokharel, R. K., Jahan, N. & Barakat, A., Nov 5 2018, 2018 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2018. Institute of Electrical and Electronics Engineers Inc., 8524088. (2018 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

First-Order Mode Compact Focusing Grating Coupler for SOI Interconnect

Nawwar, O. M., Shalaby, H. M. H. & Pokharel, R. K., Sep 5 2018, IEEE Photonics Society Summer Topicals Meeting Series, SUM 2018. Institute of Electrical and Electronics Engineers Inc., p. 119-120 2 p. 8456732. (IEEE Photonics Society Summer Topicals Meeting Series, SUM 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (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., Aug 21 2018, In : IEEE Access. 6, p. 46826-46832 7 p., 8443341.

Research output: Contribution to journalArticle

8 Citations (Scopus)

High efficiency wireless power transfer system using spiral DGS resonators through biological tissues

Chalise, S., Tahar, F., Saad, M. R., Baraket, A., Yoshitomi, K. & Pokharel, R. K., Aug 7 2018, IMBioc 2018 - 2018 IEEE/MTT-S International Microwave Biomedical Conference. Institute of Electrical and Electronics Engineers Inc., p. 43-45 3 p. 8428951. (IMBioc 2018 - 2018 IEEE/MTT-S International Microwave Biomedical Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (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., Jan 1 2018, In : Applied Optics. 57, 1, p. 42-51 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

8 Citations (Scopus)

Silicon-on-Insulator Fundamental to First-Order Dual Polarization Mode Converter based on Si-Si3N4 Phase Plate Waveguide

Abu-Elmaaty, B. E., Sayed, M. S., Shalaby, H. M. H., Pokharel, R. & Srivastava, A., Sep 26 2018, 2018 20th International Conference on Transparent Optical Networks, ICTON 2018. IEEE Computer Society, 8473997. (International Conference on Transparent Optical Networks; vol. 2018-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

TE 0 -to-TE 2 Silicon-on-Insulator Internally Dielectric Waveguide Mode Converter

Abu-Elmaaty, B. E., Sayed, M. S., Shalaby, H. M. H. & Pokharel, R. K., Dec 28 2018, 2018 Asia Communications and Photonics Conference, ACP 2018. OSA - The Optical Society, 8596146. (Asia Communications and Photonics Conference, ACP; vol. 2018-October).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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., Sep 2018, In : IEEE Transactions on Components, Packaging and Manufacturing Technology. 8, 9, p. 1642-1649 8 p., 8423676.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2017

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

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

Research output: Contribution to journalArticle

10 Citations (Scopus)

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., Feb 2017, Microwave Journal, 60, 2, p. 90-100 11 p.

Research output: Contribution to specialist publicationArticle

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., Apr 2017, In : IEICE Transactions on Electronics. E100C, 4, p. 363-369 7 p.

Research output: Contribution to journalArticle

A CMOS ultrawideband pulse generator for 3-5 GHz applications

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

Research output: Contribution to journalArticle

5 Citations (Scopus)

A new compact wireless power transfer system using C-shaped printed resonators

Sharaf, R., Hekal, S., El-Hameed, A. A., Abdel-Rahman, A. B. & Pokharel, R. K., Feb 2 2017, 2016 IEEE International Conference on Electronics, Circuits and Systems, ICECS 2016. Institute of Electrical and Electronics Engineers Inc., p. 321-323 3 p. 7841197. (2016 IEEE International Conference on Electronics, Circuits and Systems, ICECS 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (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., Feb 1 2017, In : IEEE Transactions on Microwave Theory and Techniques. 65, 2, p. 591-599 9 p., 7731202.

Research output: Contribution to journalArticle

38 Citations (Scopus)

Class-C architecture for cross-coupled FBAR oscillator to further improve phase noise

Enche Ab Rahim, S. A. & Pokharel, R. K., Jan 1 2017, In : IEICE Electronics Express. 14, 5, 20170056.

Research output: Contribution to journalArticle

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., Sep 2017, In : IEEE Journal of the Electron Devices Society. 5, 5, p. 299-305 7 p., 7984797.

Research output: Contribution to journalArticle

7 Citations (Scopus)