volume | PIER Journals

Abstract

The folding antennas are anticipated to become mandatory because of integration necesity according to communication object shapes. The effect of folded antennas on the electromagnetic (EM) radiation is an open question for RF and microwave wireless engineers. An innovative approach to explore the flexible patch antenna (FPA) parameters through V-folding analysis is addressed for this problem. This paper is focused on the methodological approach of FPA study by considering an innovative V-folding behaviour compared to the classical flat condition. As proof-of-concept, FPA prototypes are designed on Kapton substrate, simulated, fabricated, and tested. A non-shifting operating frequency is achieved at 3.4 GHz for all percentage-wise folding with a flat (unfold) bandwidth of about 360.8 MHz with good acceptable performance. The FPA performance prediction as reflection coefficient, efficiency, gain, and directivity versus forward and back V-folding percentage and angle is examined. The obtained result can be exploited to predict the V-folding effect on the communication performances of transceiver systems like radar, satellite and multimedia applications.

1. Xu, Qinyi, Beibei Wang, Feng Zhang, Deepika Sai Regani, Fengyu Wang, and K. J. Ray Liu, "Wireless AI in smart car: How smart a car can be?," IEEE Access, Vol. 8, 55091-55112, 2020.

2. Xu, Guoqing, Qi Zhang, Baopu Li, Yimin Zhou, Ming Wang, Wei Feng, and Qingsong Zhu, "Smart car care systems and its technology prospects with service robots function," 2014 IEEE International Conference on Information and Automation (ICIA), 1289-1294, Hailar, China, 2014.

3. Miranda, Jorge, Mukhtiar Memon, Jorge Cabral, Blaise Ravelo, Stefan Rahr Wagner, Christian Fischer Pedersen, Morten Mathiesen, and Claus Nielsen, "Eye on patient care: Continuous health monitoring: Design and implementation of a wireless platform for healthcare applications," IEEE Microwave Magazine, Vol. 18, No. 2, 83-94, 2017.

4. Bhuva, Dhruvin, Keshavan Sathashivan, Apurva Patil, and Shubham Singh, "Smart car systems: A need in smart city," 2018 International Conference on Smart City and Emerging Technology (ICSCET), 1-3, Mumbai, India, Jan. 2018.

5. Zhao, Xiaoli and Jie Jin, "High gain directional antenna array for WiMAX application," Transactions of Tianjin University, Vol. 20, 364-367, 2014.

6. Song, Lingnan and Yahya Rahmat-Samii, "A systematic investigation of rectangular patch antenna bending effects for wearable applications," IEEE Transactions on Antennas and Propagation, Vol. 66, No. 5, 2219-2228, May 2018.

7. Song, Lingnan and Yahya Rahmat-Samii, "Patch antenna bending effects for wearable applications: Guidelines and design curves," 2018 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM), 1-2, Boulder, CO, USA, Jan. 2018.

8. Sanchez-Montero, Rocio, Pablo-Luis Lopez-Espi, Cristina Alen-Cordero, and Juan-Antonio Martinez-Rojas, "Bend and moisture effects on the performance of a U-shaped slotted wearable antenna for off-body communications in an industrial scientific medical (ISM) 2.4 GHz band," Sensors, Vol. 19, No. 8, 1804, 2019.
doi:10.3390/s19081804

9. Ibanez-Labiano, Isidoro, M. Said Ergoktas, Coskun Kocabas, Anne Toomey, Akram Alomainy, and Elif Ozden-Yenigun, "Graphene-based soft wearable antennas," Applied Materials Today, Vol. 20, 100727, 2020.

10. Kao, Hsuan-Ling and Chun-Hsiang Chuang, "Bending effects on a fabric-based antenna for wearable applications," 2020 IEEE 70th Electronic Components and Technology Conference (ECTC), 1665-1670, Orlando, FL, USA, Jun. 2020.

11. Kapetanakis, Theodoros N., Christos D. Nikolopoulos, Konstantinos Petridis, and Ioannis O. Vardiambasis, "Wearable textile antenna with a graphene sheet or conductive fabric patch for the 2.45 GHz band," Electronics, Vol. 10, No. 21, 2571, 2021.

12. Durgun, Ahmet Cemal, Constantine A. Balanis, Craig R. Birtcher, and David R. Allee, "Design, simulation, fabrication and testing of flexible bow-tie antennas," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 12, 4425-4435, Dec. 2011.

13. Aas, J. A. and K. Jakobsen, "Radiation patterns of rectangular microstrip antennas on finite ground planes," 1982 12th European Microwave Conference, 384-389, Helsinki, Finland, Sep. 1982.

14. Li, R. L., G. DeJean, E. Tsai, E. Tentzeris, and J. Laskar, "Novel small folded shorted-patch antennas," IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313), Vol. 4, 26-29, San Antonio, TX, USA, Jun. 2002.

15. Olaimat, Melad M. and Nihad I. Dib, "Improved formulae for the resonant frequencies of triangular microstrip patch antennas," International Journal of Electronics, Vol. 98, No. 3, 407-424, 2011.

16. Chen, Horng-Dean, Chow-Yen-Desmond Sim, Jun-Yi Wu, and Tsung-Wen Chiu, "Broadband high-gain microstrip array antennas for WiMAX base station," IEEE Transactions on Antennas and Propagation, Vol. 60, No. 8, 3977-3980, 2012.

17. Kumar, P. Prasanna and R. Nakkeeran, "A new corrugated tooth like slot microstrip antenna for WiMAX/satellite applications," 2014 IEEE Students' Conference on Electrical, Electronics and Computer Science, 1-5, Bhopal, Mar. 2014.

18. Pandey, Ratnesh and Dinesh Kumar Vishwakarma, "A fractalized meander‐line EBG‐based microstrip teeth‐like patch slot antenna for use in satellite and defense applications," Microwave and Optical Technology Letters, Vol. 58, No. 8, 2010-2015, Aug. 2016.

19. Singh, Ashish, Mohammad Aneesh, Kamakshi, and J. A. Ansari, "Analysis of microstrip line fed patch antenna for wireless communications," Open Engineering, Vol. 7, No. 1, 279-286, 2017.

20. Varma, Ruchi and Jayanta Ghosh, "Multi-band proximity coupled microstrip antenna for wireless applications," Microwave and Optical Technology Letters, Vol. 60, No. 2, 424-428, 2018.

21. Ahmed, Sana, Farooq A. Tahir, Atif Shamim, and Hammad M. Cheema, "A compact kapton-based inkjet-printed multiband antenna for flexible wireless devices," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 1802-1805, 2015.

22. Froehle, Patrick, Tyler Przybylski, Christopher McDonald, Milad Mirzaee, Sima Noghanian, and Reza Fazel-Rezai, "Flexible antenna for wireless body area network," 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 1214-1215, Vancouver, BC, Canada, Jul. 2015.

23. Ahmed, Sana, Farooq A. Tahir, Atif Shamim, and Hammad M. Cheema, "A compact kapton-based inkjet-printed multiband antenna for flexible wireless devices," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 1802-1805, 2015.

24. Rabobason, Yvon Georges, Grigorios Rigas, Srijittar Swaisaenyakorn, Bobur Mirkhaydarov, Blaise Ravelo, Maxim Shkunov, Paul Young, and Nabil Benjelloun, "Design and synthesis of flexible switching 1 × 2 antenna array on Kapton substrate," The European Physical Journal Applied Physics, Vol. 74, No. 3, 30102, 2016.

25. Raad, Haider R., Ayman I. Abbosh, Hussain M. Al-Rizzo, and Daniel G. Rucker, "Flexible and compact AMC based antenna for telemedicine applications," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 2, 524-531, Feb. 2013.

26. Simorangkir, Roy B. V. B., Yang Yang, Karu P. Esselle, and Basit A. Zeb, "A method to realize robust flexible electronically tunable antennas using polymer-embedded conductive fabric," IEEE Transactions on Antennas and Propagation, Vol. 66, No. 1, 50-58, Jan. 2018.

27. Alharbi, Saad, Raed M. Shubair, and Asimina Kiourti, "Flexible antennas for wearable applications: Recent advances and design challenges," 12th European Conference on Antennas and Propagation (EuCAP 2018), 1–3, London, UK, Apr. 2018.

28. El Gharbi, Mariam, Raúl Fernández-García, Saida Ahyoud, and Ignacio Gil, "A review of flexible wearable antenna sensors: Design, fabrication methods, and applications," Materials, Vol. 13, No. 17, 3781, 2020.
doi:10.3390/ma13173781

29. Leng, Ting, Kewen Pan, Xinyao Zhou, Yize Li, Mahmoud A. Abdalla, and Zhirun Hu, "Non-volatile RF reconfigurable antenna on flexible substrate for wireless IoT applications," IEEE Access, Vol. 9, 119395-119401, 2021.

30. Ayyala, Kishore Ajay Kumar, Atul Thakur, Zhou Yong, Syed Samar Yazdani, Preeti Thakur, M. S. Prasad, Nour Mohammad Murad, Sahbi Baccar, Benoît Agnus, and Blaise Ravelo, "Electro-geometrical analysis of transversal V-fold patch antenna," International Journal of Electrical and Electronics Research, Vol. 10, No. 4, 1281-1289, Dec. 2022.
doi:10.37391/ijeer.100481

31. Ayyala, Kishore Ajay Kumar, Atul Thakur, Sahbi Baccar, Nour Mohammad Murad, Mani S. Prasad, Preeti Thakur, Glauco Fontgalland, Yong Zhou, and Blaise Ravelo, "Systematic flexible antenna performance study of V-folding percentage influence," Progress In Electromagnetics Research C, Vol. 129, 99-113, 2023.

32. Elmobarak, Husameldin Abdelrahman, Mohamed Himdi, Xavier Castel, Sharul Kamal Abdul Rahim, and Tan Kim Geok, "Flexible patch antenna array operating at microwaves based on thin composite material," IEEE Access, Vol. 10, 115663-115672, 2022.

33. Boeykens, Freek, Luigi Vallozzi, and Hendrik Rogier, "Cylindrical bending of deformable textile rectangular patch antennas," International Journal of Antennas and Propagation, Vol. 2012, Article ID 170420, 1–11, 2012.

34. Osman, Mai A. R., M. K. A. Rahim, N. A. Samsuri, M. K. Elbasheer, and M. E. Ali, "Textile UWB antenna bending and wet performances," International Journal of Antennas and Propagation, Vol. 2012, Article ID 251682, 12, 2012.

35. Phan, Hong Phuong, Tan-Phu Vuong, Philippe Benech, Pascal Xavier, and Pascal Borel, "Study of bending effects of a wideband paper-based printed microstrip-fed antenna," Microwave and Optical Technology Letters, Vol. 62, No. 4, 1785-1794, 2020.

36. Mohandoss, Susila, Sandeep Kumar Palaniswamy, Rama Rao Thipparaju, Malathi Kanagasabai, Balarami Reddy Bobbili Naga, and Sachin Kumar, "On the bending and time domain analysis of compact wideband flexible monopole antennas," AEU --- International Journal of Electronics and Communications, Vol. 101, 168-181, 2019.

37. Boyuan, Ma, J. Pan, Enhao Wang, and Yuyue Luo, "Conformal bent dielectric resonator antennas with curving ground plane," IEEE Transactions on Antennas and Propagation, Vol. 67, No. 3, 1931-1936, Mar. 2019.

38. Shafaet-Uz-Zaman, Khandker and Mohammad Abdul Matin, "Analysis of bending and human body effects on sleeve-badge textile antenna performance," 2019 TEQIP III Sponsored International Conference on Microwave Integrated Circuits, Photonics and Wireless Networks (IMICPW), 10-14, 2019.

39. Balanis, Constantine A., Antenna Theory: Analysis and Design, 3rd Ed., John Wiley & Sons, 2005.

Dr. Ayyala Kishore Ajay Kumar

Dr. Atul Thakur

Dr. Shabi Baccar

Dr. Hugerles S. Silva

Dr. Preeti Thakur

Dr. Glauco Fontgalland

Dr. Yong Zhou

Prof. Blaise Ravelo