Simple model for the input impedance of coax-fed rectangular microstrip patch antenna for cad

Coplanar Capacitively Coupled Probe Fed Microstrip Antennas for Wideband Applications

“…Hence the fringing capacitances from the edges may be significant in this case. These capacitances, often known as terminal capacitances of the line, can be calculated from [20]:…”

Design of an Antenna System in Wireless Communication Applications (2.45GHz ISM Band) by Applying FDSC Model

“…4, and Fig. 5, it illustrates that the maximum standing wave ratio is stipulated as 2, the allowable bandwidth of the FDSC model shows a greater value than that of the Abboud's model [4], to an extent of about 11.40%. A possible explanation is that (bandwidth) is directly proportional to the loss of the system [5].…”

“…Fig. 1 shows the input impedances calculated as per the FDSC model [2], [3] and that by the Abboud's model [4] for the patch operating at 2.45GHz. The design of the matching section for the antenna will be the next step and is discussed in the following sections.…”

“…First, the design of the rectangular microstrip patch antenna is demonstrated by using the FDSC model in [2], [3] Then, the impedance matching methods for the antenna are indicated. Finally, the analysis and comparison of the FDSC design and the conventional model [4] are presented.…”

H- Shaped Stacked Patch Antenna for Dual Band Operation

“…Therefore the equivalent circuit of U-slot loaded patch can be given as shown in Fig. 3, in which the resonance resistance R 1 , ∆L 1 and ∆C 1 are given as [13][14][15] …”