© The Institution of Engineering and Technology
A slot-coupled dual-band circularly polarised (CP) antenna is presented for 1.575 and 2.45 GHz bands. The antenna is composed of a split-patch surrounded by a split-ring. The slits can be lined-up toward the centre of the antenna to generate dual CP bands with opposite senses (left-hand and right-hand waves). To generate dual CP bands with the same sense, the slits on the patch is located orthogonal to the slits on the ring. In the coupled feed, the slot is a square in shape and is corner-coupled to a microstrip line. The lengths of the slits are tuned for good CP operations at both bands. Good match is obtained on both bands by adding stubs to the feeding microstrip line.
References
-
-
1)
-
9. Chang, T.-N., Lin, J.-M.: ‘Circularly polarized ring-patch antenna’, IEEE Antennas Wirel. Propag. Lett., 2012, 11, pp. 26–29 (doi: 10.1109/LAWP.2011.2182174).
-
2)
-
8. Chang, T.-N., Lin, J.-M., Chen, Y.-G.: ‘A circularly polarized ring-antenna fed by a serially coupled square slot-ring’, IEEE Trans. Antennas Propag., 2012, 60, (2), pp. 1132–1135 (doi: 10.1109/TAP.2011.2173138).
-
3)
-
15. Maqsood, M., Gao, S., Brown, T.-W.-C., et al: ‘Low-cost dual-band circularly polarized switched-beam array for global navigation satellite system’, IEEE Trans. Antennas Propag., 2014, 62, (4), pp. 1975–1982 (doi: 10.1109/TAP.2014.2301435).
-
4)
-
3. Pyo, S., Baik, J.-W., Kim, Y.-S.: ‘Slot-perturbed microstrip antenna for switchable circular polarisation’, Electron. Lett., 2011, 47, (10), pp. 583–585 (doi: 10.1049/el.2011.0721).
-
5)
-
18. Chang, D.-C., Zeng, B.-H., Liu, J.-C.: ‘CPW-fed circular fractal slot antenna design for dual-band applications’, IEEE Trans. Antennas and Propagation, 2008, 56, (12), pp. 3630–3635 (doi: 10.1109/TAP.2008.2007279).
-
6)
-
23. Rezaeieh, S.-A.: ‘Dual band dual sense circularly polarised monopole antenna for GPS and WLAN applications’, Electron. Lett., 2011, 47, (22), pp. 1212–1214 (doi: 10.1049/el.2011.2252).
-
7)
-
1. Lim, B.-W., Korolkiewicz, E., Scott, S.: ‘Optimised design of corner microstrip fed nearly square patch antenna for circular polarisation’, Electron. Lett., 1996, 32, (7), pp. 610–612 (doi: 10.1049/el:19960411).
-
8)
-
2. Nasimuddin, , Qing, X., Chen, Z.N.: ‘Dual-band circularly polarized S-shaped slotted patch antenna with a small frequency-ratio’, IEEE Trans. Antennas Propag., 2010, 58, (6), pp. 2112–2115 (doi: 10.1109/TAP.2010.2046851).
-
9)
-
24. Chen, Y.-Y., Jiao, Y.-C., Zhao, G., Zhang, F., Liao, Z.-L., Tian, Y.: ‘Dual-band dual-sense circularly polarized slot antenna with a C-shaped grounded strip’, IEEE Antennas Wirel. Propag. Lett., 2011, 10, pp. 915–918 (doi: 10.1109/LAWP.2011.2166750).
-
10)
-
S.I. Latif ,
L. Shafai
.
Hybrid perturbation scheme for wide angle circular polarisation of stacked square-ring microstrip antennas.
Electron. Lett.
,
1065 -
1066
-
11)
-
22. Liao, W., Chu, Q.-X.: ‘Dual-band circularly polarized microstrip antenna with small frequency ratio’, Prog. Electromagn. Res. Lett., 2010, 15, pp. 145–152 (doi: 10.2528/PIERL10052101).
-
12)
-
12. Deng, C., Li, Y., Zhang, Z., Pan, G., Feng, Z.: ‘Dual-band circularly polarized rotated patch antenna with a parasitic circular patch loading’, IEEE Antennas Wirel. Propag. Lett., 2013, 12, pp. 492–495 (doi: 10.1109/LAWP.2013.2254696).
-
13)
-
B.Y. Toh ,
R. Cahill ,
V.F. Fusco
.
Understanding and measuring circular polarization.
IEEE Trans. Educ.
,
3 ,
313 -
318
-
14)
-
X.L. Bao ,
M.J. Ammann
.
Dual-frequency circularly-polarised patch antenna with compact size and small frequency ratio.
IEEE Trans. Antennas Propag.
,
7 ,
2104 -
2107
-
15)
-
J.S. Row
.
Design of square-ring microstrip antenna for circular polarization.
Electron. Lett.
,
93 -
95
-
16)
-
20. Chang, T.-N., Sun, H.-H.: ‘A dual-band antenna with coplanar ring and patch’, IEEE Microw. Wirel. Compon. Lett., 2006, 48, (9), pp. 1785–1789.
-
17)
-
14. Agarwal, K., Guo, Y.-X., Nasimuddin, , Alphones, A.: ‘Dual-band circularly polarized stacked microstrip antenna over RIS for GPS applications’. Wireless Symp. (IWS), April 2013, pp. 1–4.
-
18)
-
M.K. Fries ,
M. Grani ,
R. Vahldieck
.
A reconfigurable slot antenna with switchable polarization.
IEEE Microw. Wirel. Compon. Lett.
,
11 ,
490 -
492
-
19)
-
K.F. Tong ,
J.J. Huang
.
New proximity coupled feeding method for reconfigurable circularly polarized microstrip ring antennas.
IEEE Trans. Antennas Propag.
,
7 ,
1860 -
1866
-
20)
-
13. Caso, R., Michel, A., Rodriguez-Pino, M., Nepa, P.: ‘Dual-band UHF-RFID/WLAN circularly polarized antenna for portable RFID readers’, IEEE Trans. Antennas Propag., 2014, 62, (5), pp. 2822–2826 (doi: 10.1109/TAP.2014.2303971).
-
21)
-
19. Chang, T.-N., Shie, W., Lin, J.-M.: ‘A slot-ring coupled circularly polarized ring-antenna’, Modern Internet Things, 2012, 1, pp. 1–5.
-
22)
-
H. Iwasaki ,
N. Chiba
.
Circularly polarised back-to-back microstrip antenna with an omnidirectional pattern.
IEE Proc., Microw. Antennas Propag.
,
4 ,
277 -
281
-
23)
-
11. Wei, K., Zhang, Z., Feng, Z.: ‘Design of a coplanar integrated microstrip antenna for GPS/ITS applications’, IEEE Antennas Wirel. Propag. Lett., 2011, 10, pp. 458–461 (doi: 10.1109/LAWP.2011.2152361).
-
24)
-
21. Chang, T.-N., Lin, J.-M.: ‘Serial aperture-coupled dual band circularly polarized antenna’, IEEE Trans. Antennas Propag., 2011, 59, (6), pp. 2419–2423 (doi: 10.1109/TAP.2011.2144553).
-
25)
-
K. Hirose ,
H. Nakano
.
Dual-loop slot antenna with simple feed.
Electron. Lett.
,
18 ,
1218 -
1219
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