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- Title
Gain enhancement of CPW-fed hexagonal shaped antenna inspired by HCSRR metamaterial for multiband operation using frequency selective surface.
- Authors
Rajasri, S.; Boopathi Rani, R.
- Abstract
A novel compact coplanar waveguide (CPW) fed hexagonal shaped metamaterial unit cell inspired antenna for multi-band operation is proposed in this article. The gain of the proposed antenna is enhanced using frequency selective surface (FSS) as reflector. Initially, a hexagonal shaped CPW-fed monopole antenna is designed with the dimensions of 30 × 30 × 1.6 mm3 on FR4 substrate for the resonant frequency of 4.5 GHz and a proposed unequal width of hexagonal metamaterial unit cell is inspired on the antenna for obtaining the other two resonating frequencies at 1.7 GHz and 3.4 GHz. The gain achieved by this antenna is 2.4 dBi. To enhance the gain of the antenna, the FSS is introduced as the reflector. The proposed antenna with FSS is providing the enhanced gain of 9 dBi. Antenna parameters such as reflection coefficient, E-plane and H-plane radiation patterns, gain and FSS characteristics such as band stop, band pass, reflection phase are analyzed through simulation and validated through measurements. In addition, the angular stability of the proposed FSS structure is analyzed and found as 40°. The proposed technique can be adopted for increasing the gain of the multi-band antenna.
- Subjects
FREQUENCY selective surfaces; ANTENNAS (Electronics); METAMATERIAL antennas; MULTIFREQUENCY antennas; METAMATERIALS; MONOPOLE antennas
- Publication
Applied Physics A: Materials Science & Processing, 2023, Vol 129, Issue 10, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-023-06968-5