Systems, apparatus, and methods to optimize antenna performance
Disclosed are a system, apparatus, and method for modifying a dipole antenna to comprise unequal arm lengths for matching the condition of two different dielectric materials such as air and human body. The modified dipole antenna is built in a cylindrical pipe shape dipole that has a hollow center to let wires pass through it and has little to no effect in antenna performance The antenna can be bent in different shape to fit in any wireless product of any shape or size. The antenna is designed to provide a stable radiation at one side and partial radiation at front side even with human body intervention. Further the antenna can be combined with another similar antenna via a power splitter/divider to form a full 360 degree radiation pattern even in presence of a human body in proximity.
1. A modified dipole antenna comprising:
a first arm having a surface layer made of a metal and an inner layer made of a non-metal, wherein a feed of a radio frequency signal cable is attached to the surface layer of the first arm; and
a second arm having a surface layer made of a metal and an inner layer made of a non-metal, wherein the radio frequency signal cable is passed through the inner layer of the second arm and ground is attached to the surface layer of the second arm,
wherein length of the first arm is determined from a first dielectric constant of a first dielectric material and length of the second arm is determined from a second dielectric constant of a second dielectric material;
wherein the first arm and the second arm is bent in a spiral shape forming different radii of the first arm and the second arm and wherein the radii of the first arm and the second arm are dependent on resonance frequencies of the wireless transceiver.
2. The modified dipole antenna of claim 1 , wherein the first dielectric material is air and the second dielectric material is human body.
3. The modified dipole antenna of claim 1 , wherein the modified dipole antenna is bendable.
4. The modified dipole antenna of claim 1 , wherein the modified dipole antenna is fitted into a cylindrical pipe shape that is bendable for fitting into a wireless electronic apparatus.
5. The modified dipole antenna of claim 1 , wherein the wireless electronic apparatus is a headset worn by a human body.
6. The modified dipole antenna of claim 1 , wherein the first and second dielectric constants are different.
7. The modified dipole antenna of claim 1 , wherein a wireless transceiver operated frequency is determined by ratio of the lengths of the first arm and the second arm.
8. The modified dipole antenna of claim 7 , wherein the wireless transceiver operated frequency is dependent on the first dielectric constant, the second dielectric constant, and width of the modified dipole antenna that is fitted into a cylindrical shape body.
9. The modified dipole antenna of claim 1 , wherein the length of the first arm is tuned as per dielectric constant of air.
10. The modified dipole antenna of claim 9 , wherein the length of the first arm is 3 cm for quarter wavelength dipole and 6 cm for half wavelength dipole operating at 2.4 GHz.
11. The modified dipole antenna of claim 1 , wherein the length of the second arm is tuned according to dielectric constant of human body.
12. The modified dipole antenna of claim 1 , wherein the lengths of the first and second arms are differently tuned for widening bandwidth of the modified dipole antenna to further minimize radiation disturbance caused by presence of a human body.
13. The modified dipole antenna of claim 1 , wherein width of at least one of the first arm and the second arm is comparatively thinner than the other.
14. The modified dipole antenna of claim 1 , wherein the first and the second arms are designed to be detachable from the modified dipole antenna.
15. The modified dipole antenna of claim 1 , wherein the modified dipole antenna is combined together with a power divider, and the power divider is further connected with a second modified dipole antenna for enhancing collaborative performance.
16. The modified dipole antenna of claim 15 , wherein the second modified dipole antenna is similar to the modified dipole antenna and comprises symmetric arm lengths.
17. The modified dipole antenna of claim 15 , wherein the second modified dipole antenna is similar to the modified dipole antenna and comprises asymmetric arm lengths.
18. The modified dipole antenna of claim 15 , wherein partial radiation patterns of the modified dipole antenna and the second modified dipole antenna are combined to provide a full 360 degree radiation pattern.
19. The modified dipole antenna of claim 15 , wherein partial radiation patterns of the modified dipole antenna and the second modified dipole antenna minimizes signal attenuation caused due to presence of a human body in proximity.