Fork shaped with inverted L-stub resonator UWB antenna for WiMAX/WLAN rejection band

Raj Kumar, Yedukondalu Kamatham

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


A compact beveled fed inverted L-stub dual-band rejection, ultra-wideband (UWB) radiating antenna is proposed. The antenna consists of the dual fork-shaped radiating elements and inverted L-shaped stub resonators. The fork-shaped radiating elements together with stub resonator occupies a size of 20 × 14 mm2. This antenna accepts an impedance bandwidth (VSWR ≤ 2) of 9 GHz and rejects two narrow interfering WiMAX (3.1 GHz)/WLAN (5.1 GHz) bands. The rejecting frequencies are attained by using an inverted L-shaped stub resonator. The two rejecting frequencies of WiMAX/WLAN bands have an acceptable gain reduction and weak radiation in UWB communication. Therefore, the design is appropriate for WiMAX/WLAN dense environments. Meanwhile, the measured results of the fabricated prototype exhibit a good matching with the simulated results.

Original languageEnglish
Article number152881
JournalAEU - International Journal of Electronics and Communications
StatePublished - 1 Oct 2019
Externally publishedYes


  • Compact
  • Dual-band rejection
  • Fork shape
  • Inverted L-stub
  • UWB

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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