An experimental analysis in the 2 MHz frequency range is performed on a multiband HF antenna which contains a two, three, or four dipole array. The antenna design equations and bandwidths are determined. The effects of dipole, feedpoint, and frequency separation on the design parameters are ...
A multiband chip antenna for a mobile communication terminal is provided to easily tune an antenna and to extend bandwidth by coupling two radial members through each inductor member and capacitor member. In a multiband chip antenna for a mobile communication terminal, a first radial member(10) ha...
Product Name:Xiegu g90 transceiver;Brand Name:XIEGU;Model Number:G90;Storage Channel:40;frequency range:0.5MHz to 30MHz;Talk Range:Global coverage (Signal depends on antenna and region);Working mode:SSB/CW/AM;voltage range:12 ~ 15V DC;RF output power:20W
The present invention relates to an HF UHF multiband RFID tag antenna comprising: an UHF tag antenna (10), and an HF tag antenna (20). The UHF tag antenna (10) includes: a left side antenna pole (11); a left side meander line (12) which is connected to the left side antenna pole...
A multiband wire antenna for use at HFNo AbstractAustin, B. A.COLLOQUIUM DIGEST- IEE
The proposed antenna is an S-shaped strip connected with a notched rectangle loop radiation patch with a ground plane, and there is a slot in the ground plane. The two lower bands are achieved by the rectangle loop patch and the higher band is achieved by the slot in the ground plane. ...
Alexander, "A compact printed antenna for multi- band wireless applications," presented at the Int. Workshop on Antenna Technology, 2010.AbuTarboush, H.F., R. Nilavalan, K.M. Nasr, H.S. Al- Raweshidy, D. Budimir and M.J. Alexander, 2010. A Compact Printed Antenna for Multiband ...
UWB printed monopole antenna with embedded reconfigurable multiband frequency notch function is proposed. Frequency notch is achieved by using a ground-plane slot. Lumped capacitors are added to miniaturize the slots and hence take advantages of adding more slots to reject more bands without increasing...
Results of intensive investigations using computer simulations and measurements show that the ground plane and the feed locations of the antenna have marginal effects on the performance of the antenna. The effects of the user's hand and mobile phone housing on the return loss, radiation patterns, ...