© The Institution of Engineering and Technology
A unique coplanar-waveguide (CPW)-fed circularly polarised square slot antenna with enhanced impedance bandwidth (IBW) is presented. The antenna structure includes a pair of rectangular-shaped notches located at two opposite corners of the slot for achieving a significantly enhanced IBW of 12.06 GHz (2.76–14.82 GHz), and a pair of reverse L-shaped ground arms in the slot for realising circularly polarised radiation with 1.86 GHz (4.27–6.13 GHz) bandwidth. This proposed technique has the advantages of covering the whole of the ultra-wideband spectrum (3.1–10.6 GHz), an average gain of 3 dBi and a reduced antenna size of 25 × 25 × 0.8 mm3.
References
-
-
1)
-
4. Chen, C.-H., Yung, E.K.N.: ‘Dual-band circularly-polarized CPW-fed slot antenna with a small frequency ratio and wide bandwidths’, IEEE Trans. Antennas Propag., 2011, 59, (4), pp. 1379–1384 (doi: 10.1109/TAP.2011.2109347).
-
2)
-
C.C. Chou ,
K.H. Lin ,
H.L. Su
.
Broadband circularly polarised crosspatch-loaded square slot antenna.
Electron. Lett.
,
9 ,
485 -
486
-
3)
-
6. Shirzad, H., Shokri, M., Amiri, Z., Asiaban, S., Virdee, B.: ‘Wideband circularly polarized square slot antenna with an annular patch’, Microw. Opt. Technol. Lett., 2014, 56, (1), pp. 229–233 (doi: 10.1002/mop.28016).
-
4)
-
F. Ferrero ,
C. Luxey ,
G. Jacquemod ,
R. Starai
.
Dual-band circularly polarized microstrip antenna for satellite applications.
IEEE Antennas Wirel. Propag. Lett.
,
13 -
15
-
5)
-
5. Jan, J.-Y., Pan, C.-Y., Chiu, K.-Y., Chen, H.-M.: ‘Broadband CPW-fed circularly-polarized slot antenna with an open slot’, IEEE Trans. Antennas Propag., 2013, 61, (3), pp. 1418–1422 (doi: 10.1109/TAP.2012.2231926).
-
6)
-
5. Sze, J.Y., Wang, J.C., Chang, C.C.: ‘Axial-ratio bandwidth enhancement of asymmetric-CPW-fed circularly-polarised square slot antenna’, Electron. Lett., 2008, 44, (18), pp. 1048–1049 (doi: 10.1049/el:20081858).
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2014.3278
Related content
content/journals/10.1049/el.2014.3278
pub_keyword,iet_inspecKeyword,pub_concept
6
6