**5. Conclusion**

In this chapter, phase compensation techniques based on projection method and convex optimization (phase correction only) have been discussed for recovery

**Figure 7.**

*(a) Analytical results for phase compensation of a conformal cylindrical antenna array with r = 15 cm. (b) CST simulation results for phase compensation of a conformal cylindrical antenna array with r = 15 cm.*

of broadside radiation pattern on a conformal cylindrical-shaped antenna array. The compensated gains of both the methods have been compared with linear flat antenna array. It is shown that the maximum broadside gain recovered with both the methods is less than the linear antenna array for severe deformation cases and approaches the gain of linear antenna array for less conformal deformation surfaces. The analytical expressions and convex optimization algorithm used can be used by a designer to predict the maximum possible compensated gain of conformal antenna array.

**101**

**6. Future work**

**Figure 8.**

The proposed techniques can be extended for broadside pattern correction of conformal antenna arrays on other deformed surfaces (spherical nose of plane, flexing wings of UAV, etc.). Another interesting research can be to extend these techniques for beamforming on conformal deformed surfaces (e.g., on base station/ tower of cellular companies) to improve the signal-to-noise ratio (SNR) and its

*(a) Analytical results for phase compensation of a conformal cylindrical antenna array with r = 30 cm. (b) CST simulation results for phase compensation of a conformal cylindrical antenna array with r = 30 cm.*

*Broadside Pattern Correction Techniques for Conformal Antenna Arrays*

*DOI: http://dx.doi.org/10.5772/intechopen.90957*

*Broadside Pattern Correction Techniques for Conformal Antenna Arrays DOI: http://dx.doi.org/10.5772/intechopen.90957*

**Figure 8.**

*Advances in Array Optimization*

**100**

antenna array.

**Figure 7.**

of broadside radiation pattern on a conformal cylindrical-shaped antenna array. The compensated gains of both the methods have been compared with linear flat antenna array. It is shown that the maximum broadside gain recovered with both the methods is less than the linear antenna array for severe deformation cases and approaches the gain of linear antenna array for less conformal deformation surfaces. The analytical expressions and convex optimization algorithm used can be used by a designer to predict the maximum possible compensated gain of conformal

*(a) Analytical results for phase compensation of a conformal cylindrical antenna array with r = 15 cm. (b) CST simulation results for phase compensation of a conformal cylindrical antenna array with r = 15 cm.*

*(a) Analytical results for phase compensation of a conformal cylindrical antenna array with r = 30 cm. (b) CST simulation results for phase compensation of a conformal cylindrical antenna array with r = 30 cm.*
