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| Reference | Antenna figure | Antenna structure | Switching band | Frequency switching technique | Switch types | Number of switches |
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| [1] | Mirkamali et al. (2006) (University of Birmingham, UK) | Linear dipole | 0.9 GHz, 1.05 GHz, 1.205 GHz, 1.460 GHz, 1.750 GHz, 2.05 GHz, and 2.770 GHz | Control effective radiating length | Metal patch (ideal switch) | 24 |
|
| [2] | Mirkamali et al. (2010) (University of Birmingham, UK) | Log periodic dipole | Mode 1: 1–3 GHz,
Mode 2: 0.94 GHz,
Mode 3: 1.217 GHz
Mode 4: 1.477 GHz | Control effective radiating element | Metal patch (ideal switch) | 28
|
|
| [3] | Chamming (2003) (Virginia Polytechnic Institute & State University) | PIFA | 1.48 GHz, 1.49 GHz, 1.5 GHz, 1.51 GHz, 1.53 GHz, and 1.51 GHz, and 1.54 GHz | Change the ground plane length | Metal patch (ideal switch) | 12 |
| RRPA | 1.50 GHz, 1.52 GHz, and 1.53 GHz | Control the ring width | Metal patch (ideal switch) | 80 |
| RPFDA | 0.94 GHz, 1.01 GHz, 1.03 GHz, 1.04 GHz, 1.05 GHz, and 1.12 GHz | Control the parasitic element length | Metal patch (ideal switch) | 8 |
|
| Proposed in this article | Hamzah et al. (2013) (Universiti Teknologi Malaysia, Malaysia) | Koch dipole | 691 MHz, 725 MHz, 734 MHz, 865 MHz, 953 MHz, 987 MHz, 1099 MHz, 1160 MHz, 1190 MHz, 1270 MHz, 1440 MHz, 1650 MHz, 1880 MHz, 2350 MHz, and 3010 MHz | Control effective radiating length | Metal patch (ideal switch) | 50 |
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