A broadband eccentric annular slot antenna
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2009-8-18 · A Broadband Eccentric Annular Slot Antenna, Young Hoon Suh and Ikmo Park, Department of Electrical Engineering, Ajou University, pp. 94-97, IEEE copyright notice 2001. A Printed Crescent Patch Antenna for Ultrawideband Applications, Ntsanderh C. Azenui an H.Y.D. Yang, IEEE Antennas and Wireless Propagation Letters, vol. 6, 2007, pp. 113-116. A Cavity-Backed Broadband Circularly Polarized Slot/Strip 2007-1-10 · A cavity-backed slot/strip loop antenna is proposed for a broadband CP operation. The slot/strip loop is a combination of a slot loop and a strip loop. The slot loop radiates a CP wave at a lower frequency while the strip loop produces CP radiation at a higher frequency. A combination of the two frequencies leads to a bandwidth enhancement. The Compact Microstrip-Fed Annular-Slot Antenna Combined … 2019-5-17 · In this paper, an antenna comprising a compact annular-slot combined with a small concentric annular split-ring slot is presented. The antenna is fed by a T-shaped microstrip line. By using the T-shaped microstrip feedline to tune the level of electromagnetic coupling between annular-slot and feedline, good matching can be achieved. Annular slot antenna - Ball Corporation - Free Patents Online
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 , , , .
2019-5-17 · In this paper, an antenna comprising a compact annular-slot combined with a small concentric annular split-ring slot is presented. The antenna is fed by a T-shaped microstrip line. By using the T-shaped microstrip feedline to tune the level of electromagnetic coupling between annular-slot and feedline, good matching can be achieved. Annular slot antenna - Ball Corporation - Free Patents Online
Broadband CPW-Fed Circularly-Polarized Slot Antenna With an ...
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. A Compact Annular Ring Microstrip Antenna for WSN A compact annular ring microstrip antenna was proposed for a wireless sensor network (WSN) application in the 2.4 GHz band. In this paper the major considerations of the conformal antenna design were the compact size and the impact on antenna’s performance of a steel installation base. 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. Dual-Band Circularly Polarized Cavity-Backed Annular Slot
Dual-Band Circularly Polarized Cavity-Backed Annular Slot ...
A compact annular ring microstrip antenna was proposed for a wireless sensor network (WSN) application in the 2.4 GHz band. In this paper the major considerations of the conformal antenna design were the compact size and the impact on antenna's performance of a steel installation base. antenna | 论文 Lei Ge, Chow-Yen-Desmond Sim, Chuan-Wei Lin and Ting-An Chen, "Eccentric Annular Slot Patch Antenna with Frequency Agility for UHF RFID Reader Applications," International Journal of RF and Microwave Computer-Aided Engineering, vol. 27, no.2, pp. 1-9, Oct. 2016. US20110273351A1 - Wideband cavity-backed slot antenna ... A wideband cavity-backed slot antenna includes an enclosure having a slot, a balun located proximate the slot, a feed extending through the enclosure to the balun, and a plurality of coupled lines proximate the balun and distal to a location at which the balun is coupled to the feed. Microstrip‐line‐fed printed shorted ring‐slot antennas for ... Circular polarization (CP) radiation of the shorted ring‐slot antennas is achieved by selecting a proper length of the shorted section in the ring slot, which is about 3.9 and 8% of the mean circumference of annular and square ring slots, respectively, and feeding the ring slot using a microstrip line 90° to the shorted section.
A broadband eccentric annular slot antenna - IEEE Xplore
Annular slot antenna schematic The feeding line with the matching Fig. 2. Simulated normalized radiation patterns on the x-y plane with a short stubs are on the bottom and the annular slot antenna is on the top side of the circuit at 225 . The null direction for the slot without any short would be in the substrate. A Compact Annular Ring Microstrip Antenna for WSN Applications A compact annular ring microstrip antenna was proposed for a wireless sensor network (WSN) application in the 2.4 GHz band. In this paper the major considerations of the conformal antenna design were the compact size and the impact on antenna's performance of a steel installation base. antenna | 论文 Lei Ge, Chow-Yen-Desmond Sim, Chuan-Wei Lin and Ting-An Chen, "Eccentric Annular Slot Patch Antenna with Frequency Agility for UHF RFID Reader Applications," International Journal of RF and Microwave Computer-Aided Engineering, vol. 27, no.2, pp. 1-9, Oct. 2016. Microwave Engineering Corporation | Omni-Directional Antennas
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