[PDF] Top 20 CPW-Fed Reconfigurable Clover-Shaped Antenna with Switchable Circular Polarization

... to polarization reconfigurable antennas, since they can mitigate the multipath effects [1], and expand the capabilities of the communication systems ...of polarization switchable antennas have been ... See full document

... proposed antenna would be altered at both the lower band (around ...conventional switchable polarizations studied in past literature, the proposed antenna can be switched by controlling the PIN ... See full document

... the antenna. By modifying the F-shaped end patch, we can not only improve the impedance match at the two operating bands, but also reduce the axial ... See full document

... slot antenna configurations as reviewed by Zhong ...slot antenna configurations have been preferred due to their compactness and easier ...SWB antenna have been reported with complex fractal patch ... See full document

... polarized antenna with reconfigurable broadside and conical beams facilitated by a mode switchable feed network is ...realize polarization diversity needs extra space for feeding network, and it is ... See full document

... Various antenna structures used in simulation studies are shown in Figure 2, and their return loss characteristics are compared in Figure ...slot antenna with a single step meander-line radiating stub and ... See full document

... slot antenna with a reconfigurable CPW- to-slotline transition is proposed to allow switching among left- hand circular polarization (LHCP), right-hand circular ... See full document

... monopole antenna with dual-band CP is shown in ...proposed antenna after the optimization process. The proposed antenna is fabricated on an FR4 microwave substrate with a thickness of ...proposed ... See full document

... patch antenna with rounded polarization range and frequency agility by means of switch ...these switchable shorting pins, PIN diodes are used. Polarization and frequency can be selected by ... See full document

... and circular polarization characteristics for different wireless applications has increased ...line fed cavity backed U-shaped cross dipole antenna is developed to achieve wide ... See full document

... polarized CPW-fed slot antenna has been ...dual-sense circular polarization was ...proposed antenna provides good CP radiation characteristics with RHCP and LHCP for the lower ... See full document

... Antennas play very important role in the field of wireless communications. Some of them are Parabolic Reflectors, microstrip Antennas, Slot Antennas, and Folded Dipole Antennas. Each type of antenna is good in its ... See full document

... Generally, antenna operation in linear polarization is suitable for land- mobile ...a circular polarization (CP) antenna is suitable for some mobile wireless communications because of ... See full document

... the antenna to the transmitter/ receiver electronics. Like the antenna, the feed line is a wire (or ...be fed by a variety of ...is fed directly to the radiating patch using a connecting ... See full document

... between the electric and magnetic dipole responses. The components of the incident LP light at an angle of polar- ization, α = 48 ◦ , cause a weak coupling between the trapped electromagnetic modes and the free-space ... See full document

... is fed by a 0Ω microstrip line with a simple tuning stub having a straight length of L mm, which is printed on the opposite side of the microwave ...slot antenna with various dimension changes for ... See full document

... single antenna. This leads to the need to render a reconfigurable antenna with diversity properties to reduce channel interference for a secure communication ...For reconfigurable antennas, ... See full document

... strip fed wide-band monopole antenna with modified L- shaped ground plane for WLAN applications is ...proposed antenna operates at ...The antenna has an overall dimension of only 21 × ... See full document

... waveguide fed circular patch antenna. The antenna shows a pass band and stop band characteristics, thus behaving like a microwave filter for the desired band of ...the antenna shows an ... See full document

... Reflection coefficient is simply gives the idea of how much power is reflected back due to the impedance mismatch in the transmission medium. Generally the impedance bandwidth of the antenna is selected in the ... See full document