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Yes, I think it's a good idea, but there are problems with impedance matching....!!! ,,,maybe a circular parasitic patch should be added after the radiator...!!!

The antenna is interesting but it still needs work, it doesn't have a large bandwidth,,,only 1,8----2,2 GHz

,,, type of antenna,not very easy to produce , but with good results in circular polarization. Between the patch and irradiated put plate of polystyrene or polyurethane...

Antennas are essential wherever wireless communication required. They are the indispensable link between the contained signal and the “ether”. CST provides a variety of tools for each stage of the antenna design flow to study and improve your design. Antennas are used in a vast variety of applications, and thus take come in a vast variety of form factors and radiation mechanisms. The range of simulation methods in CST MWS allows the engineer to choose the best technique for each application. The transient solver could be best for wideband or planar antennas, the frequency domain solver may be more suitable for electrically small antennas, while the integral equation solver can efficiently simulate electrically large or wire antennas. Antennas never operate in isolation, but are attached to a feed network. CST DESIGN STUDIO™ (CST DS) allows the hybrid co-simulation of the effect of an attached circuit on the antenna performance. Installation of an antenna in a device or on a platform makes its analysis even more complex. The System Assembly and Modelling framework in CST DS allows the user to set up coupled simulations which can combine different solvers automatically by making use of field sources. Finally, powerful automated post-processing allows you to extract every magnitude of interest for an antenna designer – nearfield plots, SAR, phase center, directivity or farfield gain for single antennas or arrays - and to process those data further for use in parameter sweeps or optimizations in order to improve the performance of your design. Few pictures started...

,,,double-biquad I don't think it's quite right, why don't you try a batwing antenna....???!!!

Clanon, how do you go about attaching images like that...??? VNA...???

,,,no, but the interior is built according to the AppCAD program...!!!

,,,a mini-antenna on PCB...and UWB...!!!

,,,,with such a bandwidth (1800-2100 MHz), only the Batwing antenna is suitable....!!!

,,,let see how it work.....at LTE 3 (1800 MHz) and 7 (2600 MHz)-2G/4G network.

Yes, I know, this has been coming up for a few days...!!

,,,Ye Lay.... I don't understand what you mean by these posts...!!!

Clanon, try posting the image here.... and tell me how to post the hidden image (ex. from above,VNA)

The central contact is not short, it is 5.77 mm. I will do a simulation with this connector. SMA Jack.cst

Hy buddy...!!! It would be preferable to connect the antenna to the reflector with wire

I've resumed this post with a round patch antenna and a conical reflector...

Bottom of a circular metal box can build a simple antenna with an elliptical radiator...

,,,adlan,why don't you say anything, how does the antenna work?

I think you don't need to connect directly the antenna to the phone anymore, you can have your phone connected to the access point. ,,,or if you want watch this video on youtube....

The cross antenna is a medium gain and circular polarization structure made of a conductor or a strip line over the ground plane following a cross contour of four or more branches.The construction repeatability is verry easy as well the facility to obtain 14dBi gain in a small antenna.

,,,hi buddy,know that I missed you...!!! I'll try to model something like this for the desired frequency...!!! ,,,but tell me, which model of bowtie antenna is it for...???

COMPARISON BETWEEN CIRCULAR AND RECTANGULAR DESIGN OF YAGI PATCH ANTENNA Following table2 gives comparison of results of Rectangular and Circular patch antenna: From simulation result of circular and rectangular yagi patch antenna it is clear that the performance parameter changes as change in geometry. COMPARISON OF SIMULATION ON DIFFERENT SOFTWARE Following table gives comparison of result on different software: From above table it is clear that performance of antenna parameter vary with simulation software .HFSS gives the improved results. CONCLUSION In previous work same antenna was designed in CST MICROWAVE studio software but the result were not satisfactory. Same design in HFSS gives improved result. With this design we get improved result of return loss ,F/B ratio, but gain result is not satisfactory. Gain can be improved by changing some dimension. For wifi antenna is the best solution previous work has done with CST software , but some antenna is proposed with HFSS software which has given the improved result and lower F/B ratio. Dielectric constant used for this antenna is FR4 epoxy which is easily available in market. By changing the shape, dimension the simulation will be performed and the result will be taken and with best result antenna will be fabricated.

2x2 antenna panel that shows a circular polarization and operates in 3G frequency band...