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As noted, that would probably 'work' -- especially if it was clamped onto a metal rail -- but probably not as well as something with a proper ground plane/radials. So here are my options: Option 1: Get a triband NMO antenna and a NMO ground plane kit and mag adapter. That would allow me to use the same antenna at home, in the park, or on the car.
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Nov 28, 2012 · The band wavelength itself is not what determines the need for a ground plane, but rather what resonant multiple (or fraction thereof) of the wavelength is represented by the length of the antenna. For both 2m and 11m (CB) antennas, a 5/8-wave or 1/4-wave antenna will need a decent ground plane to radiate efficiently, but a 1/2-wave antenna ... Type:VHF: 1/2 λ UHF: 2 x 5/8 λ Colinear Ground plane independent. Frequency range: VHF: 142-148 MHz UHF: 430-440 MHz. Gain: VHF 0.6 dB UHF 4.6 dB ref. to a λ/4 whip.
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With the 2- meter vertical element, the resonant half-wavelength is now 3-meters long (50 mHz) and the two radials are now fed 2/3 to 1/3 off-center. The resonant frequency is higher by 1/3. Because the 4 radials are not the same length, RF divides between two resonant frequencies. The antenna is now a dual band 6-meter and 8-meter ground plane. Land Mobile Base Ground Plane Kit This Tram Land Mobile Base Ground Plane Kit This Tram Land Mobile Base Ground Plane Kit will convert your NMO mobile antenna into an Omni base station. It comes with 20.5 in. ground plane stainless steel radials and has a 200-Watt power rating and a 100 mph wind load. It is easy to install on any 2 in. pole or ...
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dual band operation of the antennas [5-13]. Recently, there has been an increasing interest in the use of Defected Ground Structure (DGS) for performance enhancement of microstrip antennas and arrays. They are vertical realized by etching off a simple shape defect from the ground plane of the microstrip antenna. Depending on the shape and 47. Radiation patterns of the X-band array: (a) V-port feed, E-plane (b) V- port feed, H-plane (c) H-port feed, E-plane, and (d) H-port feed, H-plane 92 48. S-parameters of the S-band antenna, where port 1 is V-port feed for vertical polarization and port 2 is H-port feed for horizontal polarization 94 49. Mar 01, 2019 · The ground plane and radiating patch are made of copper with a thickness of 60 μ m. The dual-band cuff button antenna at the ISM band and UNII band is designed using the ANSYS HFSS software (see Fig. 2). Download : Download high-res image (254KB) Download : Download full-size image; Fig. 1. Dual-band cuff button antenna structure. Apr 15, 2005 · Datasheet: 3 dB Gain, No Ground Plane Elevated Feed, Cellular/PCS Dual Band Antenna Source: PCTEL Antenna Products Group, Inc. Our new Antenna Specialists® elevated feed, dual band antenna provides 3 dB gain and optimal omnidirectional coverage of both cellular and PCS frequencies.
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the impedance bandwidth, a ground plane is inserted 0.25 below the antenna substrate, where is the wavelength at 2 GHz. In future design iterations, however, frequency selec-tive surfaces will be designed to bring the ground plane closer to the antenna and reduce the overall antenna thickness. Each Oct 27, 2016 · GHz Dual Band Patch Antenna. Ground Plane Independent Dual Band Wi-Fi Omnidirectional Antenna. Compact microstrip fed dual band printed rectangular patch antenna for. Amazon.com: dual band wireless antenna. Electronics: See all 3,051 items. DESIGN OF PLANAR INVERTED -F ANTENNA FOR WIRELESS APPLICATIONS. The patch antenna can be viewed as.