Analysis of W-slot loaded patch antenna for dualband operation

Rectangular Ring Frequency Reconfigurable Micro Strip Antenna - RRFRMSA for Frequency Hopping Wireless Networks and SDR

“…The frequency diversity antennas are gaining attention to minimize the adverse effects caused by multipath signal propagation, increase the channel capacity by frequency reuse, minimize the disturbance of interfering signals, thereby increasing the quality of service (QOS) of the signal provider. They offer more functionalities than conventional antennas [1]. The parameters of the antenna that can be reconfigured are frequency, radiation pattern, polarization or combinations of them.…”

Theoretical Analysis and Design of Dual Band DGS Antenna With Small Frequency Ratio for Wi-Fi and Wimax Applications

“…This loading of slots makes the current flow longer in the patch, thus lowering the antenna fundamental frequency resulting in antenna size reduction. Various dual-band operating antennas have been designed and presented by several researchers across the globe, such as W-slot loaded rectangular patch [3], dual L-shape loaded patch [4], F-shaped shorted patch antenna [5], and two U-shaped slots loaded radiating microstrip patch [6]. Another technique for obtaining dual-band radiation is by stacking or by dual feeds.…”

Analysis of T-Slot Loaded Disk Patch Antenna for Dual Band Operation with Small Frequency Ratio

“…However, these reported antenna structures of reactive loading using slots [11][12][13][14][15][16][17][18][19] involve complex calculation, design, higher frequency ratio and lower bandwidth as compared to proposed antenna. This has been summarized in Table 1.…”