The 31 linked references in paper A. Ostankov V., N. Shchetinin N., А. Останков В., Н. Щетинин Н. (2017) “Микрополосковые направленные ответвители УВЧ и СВЧ диапазонов // UHF and SHF Micro-strip Directional Couplers” / spz:neicon:radiovega:y:2017:i:5:p:1-37

  1. Guowei Lian, Zhang Wang, Zhouyan He, Zhiguang Zhong, Leming Sun, Mudan Yu. A new miniaturized microstrip branch-line coupler with good harmonic suppression // PIER Letters (Progress in Electromagnetics Research Letters). 2017. Vol. 67. Pp. 61-66. DOI: 10.2528/PIERL17021901
  2. Kazerooni М., Aghalari M. Size reduction and harmonic suppression of rat-race hybrid coupler using defected microstrip structure // PIER Letters (Progress in Electromagnetics Research Letters). 2011. Vol. 26. Pp. 87-96. DOI: 10.2528/PIERL11071704
  3. He-Xiu Xu, Guang-Ming Wang, Jian-Gang Liang. Novel composite right-/left handed transmission lines using fractal geometry and compact microwave devices application // Radio Science. 2011. Vol. 46. No. 5. Pp. 1-11. DOI: 10.1029/2010RS004617
  4. Sun L., Yin Y.-Z., Lei X., Wong V. A novel miniaturized branch-line coupler with equivalent transmission lines // PIER Letters (Progress in Electromagnetics Research Letters). 2013. Vol. 38. Pp. 35-44. DOI: 10.2528/PIERL13011302
  5. Ghatak R., Pal M., Sarkar B. Realization of miniaturized quadrature hybrid coupler with reduced length branch arms using recursively loaded stubs // PIER Letters (Progress in Electromagnetics Research Letters). 2013. Vol. 43. Pp. 45-54. DOI: 10.2528/PIERL13071304
  6. Song L., Nie Y. A miniaturized directional coupler using complementary split ring resonator and dumbbell-like defected ground structure // PIER Letters (Progress in Electromagnetics Research Letters). 2016. Vol. 63. Pp. 53-57. DOI: 10.2528/PIERL16060302
  7. Khandelwal M.K., Kanaujia B.K., Kumar S. Defected ground structure: fundamentals, analysis and applications in modern wireless trends // Intern. J. of Antennas and Propagation. 2017. Vol. 2017. Article ID 2018527. 22 p. DOI: 10.1155/2017/2018527
  8. Dao-zhi Wei, Hui-yong Zeng, Zhong-wu Yu. Compact branch-line coupler using composite right/left-handed transmission lines with novel CSSRR // 2 nd Intern. conf. on consumer electronics, communications and networks: CECNet 2012 (Yichang, China, April 21-23, 2012): Proc. N.Y.: IEEE, 2012. Pp. 218-221. DOI: 10.1109/CECNet.2012.6201447
  9. Kyo-Soon Choi, Ki-Cheol Yoon, Jae-Yeong Lee, Choul-Ki Lee, Seong-Cheol Kim, KiByoung Kim, Jong-Chul Lee. Compact branch-line coupler with harmonics suppression using meander T-shaped line // Microwave and Optical Technology Letters. 2014. Vol. 56. No. 6. Pp. 1382-1384. DOI: 10.1002/mop.28331
  10. Nosrati M., Virdee B.S. Realization of a compact branch-line coupler using quasi-fractal loaded coupled transmission-lines // PIER Letters (Progress in Electromagnetics Research Letters). 2010. Vol. 13. Pp. 33-40. DOI: 10.2528/PIERC10031303
  11. Летавин Д.А. Миниатюрные конструкции микрополосковых мостовых устройств // Изв. Самарского науч. центра Российской акад. наук. 2016. Т. 18. No 2-3. С. 917-921.
  12. Letavin D.A., Mitelman Yu.E., Chechetkin V.A. Investigation of the frequency influence on the miniaturization efficiency of microstrip devices using LPFs // 10th Eur. conf. on antennas and propagation: EuCAP 2016 (Davos, Switzerland, April 10-15, 2016): Proc. N.Y.: IEEE, 2016. DOI: 10.1109/EuCAP.2016.7481614
  13. Wei-Shin Chang, Chi-Yang Chang. A high slow-wave factor microstrip structure with simple design formulas and its application to microwave circuit design // IEEE Trans. on Microwave Theory and Technique. 2012. Vol. 60. No. 11. Pp. 3376-3383. DOI: 10.1109/TMTT.2012.2216282
  14. Chao-Hsiung Tseng, Chin-Lin Chang. A rigorous design methodology for compact planar branch-line and rat-race couplers with asymmetrical T-structures // IEEE Trans. on Microwave Theory and Technique. 2012. Vol. 60. No. 7. Pp. 2085-2092. DOI: 10.1109/TMTT.2012.2195019
  15. Sun S., Zhu L. Miniaturised patch hybrid couplers using asymmetrically loaded cross slots // IET Microwaves, Antennas & Propagation. 2010. Vol. 4. No. 9. Pp. 1427-1433. DOI: 10.1049/iet-map.2009.0293
  16. Cao Y., Wen J., Hong H., Liu J. Design of planar dual-band branch-line coupler with Πshaped coupled lines // PIER Letters (Progress in Electromagnetics Research Letters). 2015. Vol. 55. Pp. 113-120. DOI: 10.2528/PIERL15061902
  17. Han Y.-L., Jiao Y.-C., Ni T., Weng Z.-B. Novel compact dual-band branch-line couplers with half elliptical-ring impedance stub lines // PIER Letters (Progress in Electromagnetics Research Letters). 2015. Vol. 56. Pp. 9-15. DOI: 10.2528/PIERL15072802
  18. Kuo-Cheng Chin, Ken-Min Lin, Yen-Hsiu Wei, Tzu-Hao Tseng, Yu-Jie Yang. Compact dual-band branch-line and rat-race couplers with stepped-impedance-stub lines // IEEE Trans. on Microwave Theory and Technique. 2010. Vol. 58. No. 5. Pp. 1213-1221. DOI: 10.1109/TMTT.2010.2046064
  19. Taravati S., Khalaj-Amirhosseini M. Compact dual-band stubless branch-line coupler // J. of Electromagnetic Waves and Applications. 2012. Vol. 26. No. 10. Pp. 1323-1331. DOI: 10.1080/09205071.2012.699393
  20. Ke Lu. An efficient method for analysis of arbitrary nonuniform transmission lines // IEEE Trans. on Microwave Theory and Technique. 1997. Vol. 45. No. 1. Pp. 9-14. DOI: 10.1109/22.552026
  21. Khalaj-Amirhosseini M. Analysis of coupled or single nonuniform transmission lines using step-by-step numerical integration // PIER Letters (Progress in Electromagnetics Research Letters). 2006. Vol. 58. Pp. 187-198. DOI: 10.2528/PIER05072803
  22. Khalaj-Amirhosseini M. Analysis of coupled or single nonuniform transmission lines using Taylor’s series expansion // PIER Letters (Progress in Electromagnetics Research Letters). 2006. Vol. 60. Pp. 107-117. DOI: 10.2528/PIER05101901
  23. Jizat N.M., Rahim S.K.A., Rahman T.A., Abdulrahman A.Y., Sabran M.I., Hall P.S. Miniaturized size of dual-band-meandered branch-line coupler for WLAN application // Microwave and Optical Technology Letters. 2011. Vol. 53. No. 11. Pp. 2543-2547. DOI: 10.1002/mop.26312
  24. Yae Suk Jeong, Tae Wook Kim. Design and analysis of swapped port coupler and its application in a miniaturized Butler matrix // IEEE Trans. on Microwave Theory and Technique. 2010. Vol. 58. No. 4. Pp. 764-770. DOI: 10.1109/TMTT.2010.2041571
  25. Liu H., Fang S.-J., Wang Z., Zhou Y. Miniaturization of trans-directional coupled line couplers using series inductors // PIER Letters (Progress in Electromagnetics Research Letters). 2014. Vol. 46. Pp. 171-177. DOI: 10.2528/PIERC13122201
  26. Arnedo I., Arregui I., Chudzik M., Teberio F., Lujambio A., Benito D., Lopetegi T., Laso M.A.G. Passive microwave component design using inverse scattering: theory and applications // Intern. J. of Antennas and Propagation. 2013. Vol. 2013. Article ID 761278. 10 p. DOI: 10.1155/2013/761278
  27. Moradian М. Improving isolation of slot-coupled directional couplers with weak and tight couplings // IET Microwaves Antennas & Propagation. 2015. Vol. 9. No. 14. Pp. 1645-1652. DOI: 10.1049/iet-map.2015.0219
  28. Moscoso-Martir A., Molina-Fernandez I., Ortega-Monux А. High performance multisection corrugated slot-coupled directional couplers // PIER Letters (Progress in Electromagnetics Research Letters). 2013. Vol. 134. Pp. 437-454. DOI: 10.2528/PIER12111504
  29. Nedil М., Mohamed A. El Cafsi, Denidni T.А., Gharsallah A. Novel UWB CB-CPW Butler matrix for wireless applications // 2014 IEEE Antennas and Propagation Soc. Intern. symp.: APSURSI 2014 (Memphis, USA, July 6-11, 2014): Proc. N.Y.: IEEE, 2014. Pp. 1800-1801. DOI: 10.1109/APS.2014.6905226
  30. Cheng-Hsien Liang, Wei-Shin Chang, Chi-Yang Chang. Enhanced coupling structures for tight couplers and wideband filters // IEEE Trans. on Microwave Theory and Technique. 2011. Vol. 59. No. 3. Pp. 574-583. DOI: 10.1109/TMTT.2010.2094202
  31. Yongle Wu, Weinong Sun, Sai-Wing Leung,Yinliang Diao, Kwok-Hung Chan, Yun-Ming Siu. Single-layer microstrip high-directivity coupled-line coupler with tight coupling // IEEE Trans. on Microwave Theory and Technique. 2013. Vol. 61. No. 2. Pp. 746-753. DOI: 10.1109/TMTT.2012.2235855