Air Gap Coupled Microstrip Antenna for K/Ka Band Wireless Applications

  • K. S. Ravi KumarEmail author
  • Yashpal Singh
  • K. P. Vinay
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 655)


A novel air gap coupled microstrip patch antenna is proposed for K/Ka band wireless applications. The antenna consists of defected ground structure and three-layer stacking of two FR4-epoxy and one air gap with two rectangular patches layered vertically with L-shaped slot. The dimensions of the antenna are 20 × 20 × 4 mm3. The proposed antenna operates in the frequency ranges of 16.89–33.89 GHz which covers the total K-band (18–26.5 GHz) and partial Ka band (26.5–40 GHz). The designed antenna is simulated by using HFSS EM simulator. The simulation result shows the proposed antenna gain of 9.34 dB and radiation efficiency of 76%.


DGS L-shaped patch FR4-epoxy Stacking HFSS software 


  1. 1.
    Kraus JD, Marhefka RJ, Khan AS, Antenna and wave propagation, 4th edn, pp 500–519Google Scholar
  2. 2.
    Mishra B, Singh V, Singh RK, Singh N, Singh R, A compact UWB patch antenna with defected ground for Ku/K band application.
  3. 3.
    Bhadouria AS, Kumar M (2014) Wide Ku-band microstrip patch antenna using defected patch and ground. In: International conference on advanced engineering technology research (ICAETR—2014), IEEE, pp 1–5Google Scholar
  4. 4.
    Matin MA, Sharif BS, Tsimenidis CC (2011) Broadband stacked microstrip antennas with different radiating patch. Wirel Pers Commun 56:637–648CrossRefGoogle Scholar
  5. 5.
    Patel AK, Jaiswal K, Pandey AK, Yadav S, Srivastava K, Singh R (2019) A compact inverted V-shaped slotted triple and wideband patch antenna for Ku, K, and Ka band applications. In: RTC2E-LNEE-524, pp 59–67Google Scholar
  6. 6.
    Khandelwal MK, Kanaujia BK, Dwari S, Kumar S, Gautam AK (2014) Bandwidth enhancement and cross-polarization suppression in ultra wideband microstrip antenna with defected ground plane. Microw Opt Technol Lett 56:2141–2146CrossRefGoogle Scholar
  7. 7.
    Tan B-K, Withington S, Yassin G (2016) A compact microstrip-fed planar dual-dipole antenna for broadband applications. IEEE Antennas Wirel Propag Lett 15:593–596Google Scholar
  8. 8.
    Prasad PC, Chattoraj N (2013) Design of compact Ku band microstrip antenna for satellite communication. In: International conference on communicational signal process IEEE, pp 196–200Google Scholar
  9. 9.
    Khandelwal MK, Kanaujia BK, Dwari S, Kumar S (2013) Design and analysis of microstrip DGS patch antenna with enhanced bandwidth for Ku Band applications. In: International conference microwave photonics, IEEE, pp 1–4Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2021

Authors and Affiliations

  • K. S. Ravi Kumar
    • 1
    Email author
  • Yashpal Singh
    • 2
  • K. P. Vinay
    • 1
  1. 1.RAGHU Engineering CollegeVisakhapatnamIndia
  2. 2.Somany Institute of Technology and ManagementRewariIndia

Personalised recommendations