A broadband antenna using the modified ground plane with a complementary split ring resonator for 5‐GHz WLAN band‐notched performance

Abstract

In this article, a new configuration of a broadband antenna is proposed. The designed antenna is an elliptical monopole antenna with a complementary split ring resonator structure that is inserted in the ground plane for rejecting the 5-GHz WLAN band (5. . In addition, impedance matching technique implemented by rectangular slot applied to the ground plane is suggested. The technique can be an effective method to achieve the wider bandwidth. The designed antenna shows that a VSWR less than 2 was satisfied with a resonant frequency in the range of 2.67-12 GHz.

A wideband antenna based on self‐packaged suspended coplanar waveguide technology

“…[1][2][3][4][5] Recently, wideband antennas are more and more popular because they can transmit/receive more information compared with narrow-band ones. Wideband antennas 2,[5][6][7][8][9][10][11][12][13][14][15] can be realized by using an AMC reflector, 2 metasurface reflector, 15 folded dipole technique, 5 slot antenna technique, 6,7,9,14 and low-temperature cofired ceramics, 8 and so on. Today, wideband antennas have been essential components of radio frequency front end in base station and radar systems.…”

A Compact Planar UWB Antenna with Triple Controllable Band-Notched Characteristics

“…Reviewing the literature shows that there are few ways for monopole planar antennas to achieve band-notched characteristics. The most popular approach is cutting different shaped slots from the radiating patch, from the ground plane, or from the feed line, that is, U-shaped slot [7], a Hilbert-curve shaped slot [8], cutting a wide line [9], T-shaped slot [10], defected ground structure (DGS) [11], semicircular slot [12], a bent slot or C-shaped slot [13][14][15], split ring in the ground plane [16], and slot line in the feed line [17]). Another way consists of loading diverse parasitic elements on the antenna, such as parasitic elements rear or near the radiating element [18][19][20][21][22][23], and near the feed line [24][25][26][27][28][29][30][31][32][33], to generate the band-notched 2 International Journal of Antennas and Propagation feature, which acts as resonator when the length of strip is about a half or a quarter of the guided wavelength at the desired notch frequency.…”

Compact Printed Antennas for Triple Band‐Notched UWB Using Cmlsrrs And Spiral Resonators

“…Ultrawideband (UWB) communication systems have attracted a great attention for applications in wireless communications because of their advantages, including high speed data rate, extremely low spectral power density, high precision ranging, low cost, and low complexity, since the Federal Communication Commission allowed 3.1–10.6 GHz for UWB application . However, there coexist other wireless systems such as WiMAX operating at 3.3–3.6 GHz, IEEE 802.11a/n WLAN operating at 5.15–5.35 and 5.725–5.825 GHz, and ITU 8 GHz operating at 8.025–8.4 GHz in the UWB frequency band.…”

“…It is necessary to raise notched function at these bands to avoid the interference with these systems. Therefore, various UWB antennas with multiple band‐rejection characteristic have been reported .…”