A Wideband Balun - CiteSeerX How Does it Work? Antennas often require a balanced feed system like the circuit described ... The balun shown in. Figure 1 is intended to be used with a spiral antenna. The CPW-to-CPS .... slot are smaller resonance length and wider bandwidth. [11]. Based on ..... The balun could easily be integrated as part of a microstrip ... Low-profile broadband dual-mode four-arm slot spiral antenna with ... The authors propose a low profile 4-arm slot spiral for broadband commercial ... A finite-element boundary-integral (FE-BI) based numerical tool is ... Low-profile broadband dual-mode four-arm slot spiral antenna with dual Dyson balun feed.
Abstract: A new planar, wideband feed for a slot spiral antenna is presented and tested at VHF frequencies. Radiation pattern measurements are presented to demonstrate the performance and usefulness of this feed. In contrast to most traditional printed spiral antenna designs, the one presented here incorporates a completely planar balun and feed, making it more attractive for conformal
polarized, coplanar waveguide (CPW) spiral antenna for wideband applications. The antenna ... This feed provides the capability to have an entire uniplanar array of spirals. ... of designing antennas for integrated system applications. Spiral antennas ... not 50 , and thus a wideband balun for impedance matching is required. Conformal Load-Bearing Spiral Antenna on Conductive Textile ... - CDN spiral was fabricated with an integrated microstrip planar textile balun as in[11], and placed upon a polydimethylsiloxane. (PDMS) flexible substrate. However ... Multiple Band Monopole Arm Microstrip Spiral Antenna for Cognitive ...
A PRINTED CIRCUIT FOLDED DIPOLE WITH INTEGRATED BALUN
Extremely Broadband Slot Spiral Antenna with Shallow ... Slot spiral antenna with integrated balun and feed. U.S. Patent No. 5,815,122, issued September 29. A printed circuit balun for use with spiral antennas Jan 1960 Spiral Antennas for Communication Engineering Applications ... Spiral Antennas for Communication Engineering Applications: A Systematic Approach Shashikant Patil ... circular-polarized planar spiral-slot CNSS antenna. This antenna works at L band which operates on ... The vertical balun is also integrated at the same plane with the antenna. This largely reduces the size of antenna.
Low-profile broadband dual-mode four-arm slot spiral antenna with dual Dyson balun feed Abstract: The authors propose a low profile 4-arm slot spiral for broadband commercial applications. The antenna is designed for circularly polarised dual-mode, 1st (normal) mode and 2nd (split-beam) mode, operation from 1.4-3.5 GHz and 2.5-6 GHz, respectively.
US Patent Application for Slot spiral miniaturized antenna ... [0011] A slot spiral antenna with an integrated planar balun and feed is described in U.S. Pat. No. 5,815,122 to Nurnberger, et al. The slot spiral antenna is produced by using standard printed circuit techniques. A conducting layer of the material substrate is etched to form a radiating spiral slot. A Spiral Antenna with Integrated Parallel-Plane Feeding Structure requirements of the low proflle spiral antenna geometry. A spiral antenna with integrated parallel-plane feeding structure is proposed in this paper. The antenna used has obviously improved axial ratio compared to the equiangular spiral antenna at low frequencies. And the traditional balun in the third dimension is moved to the planar plane.
Superconducting Spiral with Integrated Coplanar Balun
提供Ultrawideband Circularly Polarized Spiral Antenna Using Integrated Balun With Application to Time-Doword文档在线阅读与免费下载 ... (CPS)balun a feed network ...
14 Feb 2014 ... The antenna and the Dyson-style balun have been integrated ... Many efforts have been made to feed spiral antennas in the planar plane, but the ... The coplanar waveguide (CPW)-fed slot antenna has received considerable ... A Spiral Antenna with Integrated Parallel-Plane Feeding Structure The antenna and Dyson-style balun have been integrated into a multi-layer ... Kiang, "Broadband slot spiral antenna with external feed and microstrip-to- slotline ...