The dimensions of the slot and the back-strip decide the two resonant frequencies of the proposed antenna, respectively. Results show that the impedance bandwidth of the proposed wideband annular-ring slot antenna is about 80% and this broadband is suitable for WLAN and WiMAX system. Cavity-Backed Slot Antennas - Antenna Theory A practical slot antenna is the cavity-backed slot antenna. Unfortunately, the equations related to the cavity backed slot antenna are somewhat complicated and in my opinion don't give a good idea of how they work. Hence, I'll present the basics, present some experimental results and try to give an idea of design parameters. Antenna - Antennas Direct, Inc. - Free Patents Online Complete Patent Searching Database and Patent Data Analytics Services. IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 15, NO ...
Annular slot antenna - Ball Corporation - Free Patents Online
A STUDY OF A COMPACT MICROSTRIP-FED UWB ANTENNA WITH AN OPEN T-SLOT X.-F. Zhu and D.-L. Su School of Electronic and Information Engineering Beihang University Beijing, China Abstract|In this paper, a compact and simple microstrip-fed slot antenna is proposed for ultra-wideband (UWB) applications, which BROADBAND CIRCULARLY POLARIZED DIELECTRIC RESONATOR ... the work in [18], a broadband CP cylindrical DRA with annular slot excitation is investigated here. Figure 1 shows the geometry of the proposed antenna. The cylindrical DR has a radius of a = 5mm, a height of d = 12mm and a relative permittivity "d = 10:2. The DR is positioned on top of the substrate. An annular slot and an L-shaped microstrip ... A broadband circularly polarized antenna of square-ring ... Examples of RFID-reader antennas include the patch antenna fed by a Wilkinson power divider and the annular-ring slot antenna with a slot-line feed . However, these antennas are too large, and some single-feed single-element patch antennas usually have a narrow circular-polarized (CP) bandwidth , , , .
Q134 Conformal Broadband Antenna - Harris
A STUDY OF A COMPACT MICROSTRIP-FED UWB ANTENNA WITH AN OPEN T-SLOT Y. H. and I. Park, \A broadband eccentric annular slot antenna," IEEE Antennas and Propag. Soc
A Broadband Multi-layer Dual-polarization Slot Antenna ...
A Broadband Multi-layer Dual-polarization Slot Antenna ...
Figure 21: Annular Slot Antenna schematic The feeding line with the ...... [22] Young Hoon Suh and Ikmo Park, “A broadband eccentric annular slot antenna”.
BROADBAND CIRCULARLY POLARIZED DIELECTRIC RESONATOR ... the work in [18], a broadband CP cylindrical DRA with annular slot excitation is investigated here. Figure 1 shows the geometry of the proposed antenna. The cylindrical DR has a radius of a = 5mm, a height of d = 12mm and a relative permittivity "d = 10:2. The DR is positioned on top of the substrate. An annular slot and an L-shaped microstrip ... Broadband Circularly Polarized Annular-Ring Microstrip ... Abstract: A wideband circularly polarized (CP) annular-ring patch antenna with two proximity-coupled L-probe feeds orientated to have phases of 0 deg and 90 deg, using a broadband 90 deg hybrid feed, is proposed. It is found that the current distribution for CP operation can be improved by cutting a smaller concentric circular slot on the original larger circular patch to form an annular-ring ... A Broadband Multi-layer Dual-polarization Slot Antenna ...
M. Park, "A broadband eccentric annular ring microstrip slot antenna :' Joumol of the Korea Elecfmmagnetic EngineeringSo&*, vol. Asia-pacific abstracts 66) A Broadband Eccentric Annular Ring Microstrip Slot Antenna , by Young Hoon Suh, Ikmo Park (School of Elec- tronics Engineering, Ajou University): JKEES, vol. A low-frequency annular-slot antenna - NIST Page Annular slot and upper half-space. -+ where p is a position vector to a point in the slot. For a narrow slot such that t. is small com-pared to b and to the wavelength, the above simplifies to ikb j'211" e-ikR H", r:;t, -2 V cos cf/ -R dcf>', 7r7)0 0 V=-1ib b+l1 E(p')p'dp' b-A the voltage across the slot. Broadband Annular Dual-Slot Antenna - How is Broadband