Abstract
A dipole antenna with ultrawideband harmonic suppression is proposed in this communication using multipoint feeding and stub-loaded technology. Two stubs are loaded for tuning the current nulls of the fifth and third modes to coincide and then use the shared current nulls of the third- and fifth-order modes as feeding points to suppress them concurrently. The seventh- and ninth-order modes are suppressed by loading parallel stubs acting as open-circuited transmission lines with short lengths. A prototype is designed to validate the design idea. The measurements show that the antenna operates at the center frequency f0 of 1.2 GHz, and the ultrawideband out-of-band harmonic suppression reaches 10f0.
| Original language | English |
|---|---|
| Pages (from-to) | 4612-4617 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 72 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 May 2024 |
Keywords
- Dipole antenna
- mode suppression
- multipoint feeding
- wide stopband
ASJC Scopus subject areas
- Electrical and Electronic Engineering
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