Couplers are widely used in microwave subsystems, especially for radar applications. They are used to extract a directive sample of the output signal of an RF source. Typically, a coupler consists of a main arm and a secondary arm connected via coupling section. For couplers used in radar applications, power handling is a limiting factor for designers. In addition, the coupling value must be kept a flat with a high directivity over the operating bandwidth of the coupler. In this letter, we provide designs for two compact loop couplers, operating in the frequency range of 1–2 GHz and 2–4 GHz. These designs have flat coupling of −60 dB and achieve matching below −22 dB.