A wide-band single-layer patch antenna

A Novel Low Cost UWB Antenna for Early Breast Cancer Detection

“…By using these techniques, a wider impedance bandwidth of up to 50 % has been achieved. Suspended plate antenna (SPA) has been used as an alternative in designing antennas for low profile, compact, and wideband applications [23,24]. Generally, the radiating plate is placed in parallel with the ground plane at a certain height.…”

Design of G-Shaped Defected Ground Structure for Bandwidth Enhancement

“…The other method to miniaturize the microstrip antenna is to modify its geometry using irises [5] or folded structures [6][7] based on the perturbation effect [8]. Defected ground structure (DGS), where the ground plane metal of the microstrip antenna design is modified intentionally in order to enhance the performance [9][10][11]. The name for this technique simply means that a "Defect" has been etched off in the ground plane, which disturbs the shield current distribution in the ground plane and influences the input impedance as well as current flow of the antenna.…”

A Wideband Circularly Polarized Patch Antenna for 60 GHz Wireless Communications

“…The detailed characteristics of various cavity backed antennas are summarized in [6]. Another approach to improve the bandwidth and efficiency of the conventional patch antenna is to minimize the substrate dielectric constant, as demonstrated in [7,8]. It is also known that the antenna gain can be considerably increased by covering the antenna with a high permittivity superstrate [9,10].…”

“…In this paper, we present the detailed design of a 60 GHz left-hand circular polarized antenna [27] that has a good overall performance by combining various techniques reported in [5][6][7][8][9][10][11][12][13][14][15][16][29][30][31]. This patch antenna incorporates a diagonal slot at the center and features a superstrate and an air cavity backing to achieve desired performances including wide bandwidth, high efficiency and low axial ratio.…”

“…This patch antenna incorporates a diagonal slot at the center and features a superstrate and an air cavity backing to achieve desired performances including wide bandwidth, high efficiency and low axial ratio. The metal frame underneath the antenna layer serves as the cavity backing, useful for antenna bandwidth enhancement, as well as mechanical support for the antenna, making the antenna much more stable than using a supporting pin (only feasible at low frequencies) [7]. The microstrip-fed patch antenna is packaged with a flip-chip CPW interface that is fully compatible to semiconductor integrated circuits (ICs).…”