Slot Antenna Slot antennas are used typically at frequencies between 300 MHz and 24 GHz. The slot antenna is popular because they can be cut out of whatever surface they are to be mounted on, and have radiation patterns that are roughly omnidirectional (similar to a linear wire antenna, as we'll see). The polarization of the slot antenna is linear. Slot antenna - Wikipedia A slot antenna consists of a metal surface, usually a flat plate, with one or more holes or slots ... Inverted-F antenna · Inverted vee antenna · Log-periodic antenna · Loop antenna · Microstrip antenna · Moxon antenna · Offset dish antenna ... On the miniaturization of microstrip line-fed slot antenna using ... - Core On the minia- turization of microstrip line-fed slot antenna using various slots. IN: LAPC ... asymmetry. An annular slot antenna has recently been reported [7]. Broadband cross-shaped microstrip-fed slot antenna - IET Journals ...
In this article, an annular ring slot microstrip antenna loaded with two pie-shaped circular sectors is presented.With the use of pie-shaped circular sectors along the microstrip feed line, a multi-wider-band operation than for a conventional annular ring slot can be realized.
YO3DAC - Printed and Microstrip Antennas - qsl.net Bow-Tie Antenna with Microstrip-fed for C and X bands; Bow-Tie Slot Antenna for 2.4GHz, 5.2GHz and 5.8GHz; Circularly Polarized Loop Antenna with Parasitic Element for 5.6GHz; Compact Slotted Bow-tie Patch Antenna; Coupled Loop Antenna for 820MHz to 2.2GHz; CPW-Fed Curved Bow-Tie Slot Antenna for 2.4GHz and 5.5GHz COMPACT DUAL-BAND ANNULAR-RING SLOT ANTENNA WITH MEANDERED ... Figure 1 shows the geometry of the proposed microstrip-line-fed annular-ring slot antenna (ARSA), which is printed on a square microwave substrate with a side length of G = 30mm, a height of h = 0:7mm, a dielectric constant of "r = 4:4, and a loss tangent of tan– = 0:02. On the top of the substrate is the ground plane Inset Fed Microstrip Patch Antenna – MicrowaveTools
Polarization Reconfigurable Eccentric Annular Ring Slot ...
US5165109A - Microwave communication antenna - Google Patents A microwave communication antenna consists of a laminated structure having an r.f. radiating conductor affixed on the top side thereof and a feed coupling network within. The r.f. US7583233B2 - RF Receiving and transmitting apparatuses having… A log-periodic antenna having a layer of dielectric media interposed between a microstrip log-periodic portion and a slot log-periodic portion where an array of two or more log-periodic antennas that may be placed about vehicles, such as … US5661494A - High performance circularly polarized microstrip… A microstrip antenna for radiating circularly polarized electromagnetic waves comprising a cluster array (20) of at least four microstrip radiator elements (22a-22d), each of which is provided with dual orthogonal coplanar feeds in phase … US4792810A - Microwave antenna - Google Patents
design of reconfigurable annular slot antenna (asa) for ... - CiteSeerX
The design of a microstrip‐fed annular‐ring slot antenna (ARSA) with circular polarization (CP) radiation is initially studied. To obtain CP radiation with broad 3‐dB axial ratio (AR) bandwidth that can cover the WiMAX 2.3 GHz (2305–2320 MHz, 2345–2360 MHz) and WLAN 2.4 GHz (2400–2480 MHz) bands, a novel technique of extending an inverted L‐shaped slot from the bottom section of ... A PROXIMITY-FED ANNULAR SLOT ANTENNA WITH DIFFERENT A BAND ... the antenna design such as; etching difierent kinds of slots on the patch or on the ground plane [5{7], or adding parasitic elements using folded strips to the antenna [8], or inserting a spurline by etching one slot on a microstrip line of the antenna [9{11]. Recently, the unwanted frequency bands are notched using resonators such DUAL-BAND BEAM SCANNING REFLECTARRAYS AND NOVEL WIDEBAND AND ...
In a conventional microstripline-fed slot antenna, a narrow rectangular slot is cut in the ground plane, and the slot is excited by a microstrip feedline with either a short 4 or an open 5 termination. With this feed configuration, a good impedance match has been achieved for a narrow slot...
Polarization Reconfigurable Eccentric Annular Ring Slot ... Abstract: A microstrip-fed reconfigurable eccentric annular ring slot (EARS) antenna with switchable polarization is proposed. To generate orthogonal circular polarization (CP) radiations, two identical perturbation slots (PSs) are loaded below the eccentric ring-shaped slot.
Annular‐ring slot antenna designs with circular ... The design of a microstrip‐fed annular‐ring slot antenna (ARSA) with circular polarization (CP) radiation is initially studied. To obtain CP radiation with broad ... A Compact Annular Ring Microstrip Antenna for WSN Applications A compact annular ring microstrip antenna was proposed for a wireless sensor ... Ammann M.J. Microstrip-fed dual-frequency annular-slot antenna loaded by split-ring ... Compact Microstrip-Fed Annular-Slot Antenna Combined with ...