Microstrip Patch Antenna (MPA) has several advantages over conventional microwave antenna and therefore are widely used in many practical applications. Microstrip Patch Antenna is generally used in modern communication devices. Study of past few year shows that, most of work on MPA is focused on designing compact sized Microstrip Antenna. As per Microstrip Patch Antenna offer low profile, low cost and low volume. But inherently MPA have narrow Bandwidth so to enhance bandwidth various techniques are engaged. This review paper shows some certain critical issues like enhanced bandwidth and gain through different techniques. I will be enhance results using different techniques like using slots in patch ,by changing height, dielectric constant and feed point.